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The Platinum AquaSump PRO Mini Ground Water Sump Station is a compact, high performance twin pump sump system designed to manage ground water ingress in basements, cellars and other below ground structures.
It combines a robust 165L MDPE chamber with two automatic KSB AmaDrainer 301 submersible pumps, EDPM swing check non return valve assemblies and 40mm solvent weld discharge connections to provide reliable, continuous removal of seepage and ground water.
Developed as a professional grade solution for cavity drain waterproofing and basement drainage systems, it offers high resilience through twin pump operation, quiet running, low maintenance and compliance with recognised pressure and pipework standards.
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✔️ Twin KSB AmaDrainer 301 pumps provide robust duty-standby or duty-assist groundwater removal for demanding basements.
✔️ 165L rotationally moulded MDPE chamber with approximately 110L working volume ensures efficient pump cycling and reduced short-cycling.
✔️ Four fixed 90-degree inlets give flexible connection points for perimeter channels, land drains and collection systems.
✔️ Internal 40mm solvent-weld manifold with EPDM swing-check valve prevents backflow and maintains secure, leak-resistant discharge connections.
✔️ Supplied with 35kN Clark Drain driveway lid and frame for discreet, traffic-tolerant access above the sump.
Platinum AquaSump PRO Mini Ground Water Sump Station is specifically engineered for demanding basement waterproofing and ground water management where reliability and redundancy are critical. The system is built around a durable rotationally moulded MDPE chamber with a maximum volume of 165L, providing generous storage capacity and a stable, impact resistant housing for internal pipework and twin pumps. Of this volume, approximately 110L is available below the inlet level, ensuring that the pumps operate within a controlled water column for efficient cycling and reduced short cycling. The chamber incorporates four fixed inlets set at 90 degree orientations, offering flexible connection points for perimeter channels, land drains and other ground water collection systems commonly used in Type C cavity drain waterproofing schemes.
Pump performance is delivered by two KSB AmaDrainer 301 automatic submersible pumps, each designed for the automatic drainage of pits, shafts and cellars at risk from flooding and for general ground water control. These fully floodable, single stage submersible motor pumps use built in float switches for automatic start and stop control and are suitable for clean or slightly contaminated water with small particle sizes, making them ideal for ground water and cavity drain applications. The AmaDrainer 301 series provides heads of around 6–6.5m and flow rates in the region of 10,000L per hour under favourable conditions, so the twin pump configuration offers robust capacity where inflow rates vary and provides essential back up in the event of a pump fault.
Internal pipework and fittings are manufactured to EN1452 parts 2 and 3, ISO161 part 1, BS21, DIN2999 and ISO7, with threaded fittings rated to 12 bar, delivering a consistently high standard of pressure integrity and connection reliability throughout the discharge assembly. Discharge is via a 40mm solvent weld outlet, with the internal manifold incorporating an EPDM rubber swing check non return valve to prevent backflow into the chamber when the pumps stop. The system is supplied with a 40mm solvent weld discharge connection and is configured so that installers can add external isolation valves to suit site specific requirements. The MDPE chamber, pipework and fittings are compatible with typical UK basement drainage layouts and integrate readily into existing or new drainage runs using standard plumbing tools and techniques.
Platinum AquaSump PRO Mini is intended for installation below the basement or ground floor slab in both new build and retrofit situations. It is particularly suited to ground water management beneath cavity drain membrane systems, where water collected behind the membrane is channelled to the sump via perimeter drainage channels and then automatically pumped away to a suitable discharge point. The twin pump configuration can be used in duty standby or duty assist arrangements, depending on the chosen control strategy, providing continuity of operation if an individual pump experiences a fault and additional capacity during periods of high inflow. The chamber is supplied with a heavy duty Clark Drain CD452 driveway lid and frame rated to 35kN load, making it suitable for installation under screeds, plant rooms, garages or light traffic areas where a discreet yet accessible cover is required as part of a comprehensive basement waterproofing design.
High Capacity Twin Pump Configuration: Provides enhanced resilience and capacity by using two KSB AmaDrainer 301 automatic pumps, offering redundancy in case of pump failure and improved handling of peak ground water inflows.
MDPE Chamber With Generous Working Volume: Uses a robust 165L MDPE chamber with 110L volume below the inlets, giving stable pump operation, reduced cycling and improved management of fluctuating water levels in demanding basement environments.
Flexible Inlet Arrangement: Incorporates four fixed inlets set at 90 degree orientations, allowing straightforward connection of perimeter channels, land drains and other collection pipework from any side of the chamber to suit site layout and drainage design.
Compatible With Modern Cavity Drain Systems: Designed to integrate seamlessly with Type C Cavity Drain Membranes and ground water drainage schemes, ensuring collected water is reliably transported from the membrane system to the sump and then discharged away from the structure.
High Quality Pipework And Fittings: Utilises internal pipework and fittings manufactured to EN1452 2 and 3, ISO161 1, BS21, DIN2999 and ISO7, with threaded components rated to 12 bar, providing a high margin of safety, durability and long term reliability under typical operating pressures.
Effective Backflow Protection: Uses an EDPM rubber swing check non return valve on the discharge manifold, which helps prevent pumped water returning to the chamber and reduces unnecessary pump cycling, energy use and wear on the pumps.
Compact Yet Robust Design: Offers a relatively small footprint for a 165L system, making it suitable for confined plant areas and tighter basement layouts while still delivering significant storage capacity and dependable twin pump performance.
Ready For Professional Integration: Provides a 40mm solvent weld discharge connection and clear external connection points so that installers can add isolation valves, alarm lines and external pipework in line with UK basement waterproofing best practice and BS 8102 principles.
Durable Access Cover: Supplied as standard with a Clark Drain CD452 driveway lid rated to 35kN, allowing the sump to be finished flush with the surrounding floor while maintaining strong access for inspection and maintenance activities.
Quiet, Automatic Operation: Employs automatic submersible pumps located within the chamber, resulting in quiet operation beneath the floor and minimal disturbance to occupants while continuously managing ground water and seepage.
Basement And Cellar Ground Water Control: Provides automatic removal of ground water and seepage from basement slabs and retaining walls, protecting finishes, belongings and structural elements from persistent dampness, mould growth and localised flooding.
Type C Cavity Drain Waterproofing Systems: Serves as the sump station for cavity drain membrane installations, collecting water from perimeter channels and pumping it away as part of a fully drained protection system in accordance with recognised waterproofing practice.
Refurbishment Of Damp Underground Spaces: Used in the refurbishment of older cellars, semi basements and below ground storage areas where historic damp and ground water issues must be managed without extensive external excavation or underpinning.
Plant Rooms And Service Voids: Installed in plant rooms, lift pits or service voids where ground water or seepage can collect, providing reliable automatic drainage to keep critical equipment, cables and services dry and operational.
Small Commercial And Light Industrial Projects: Suitable for smaller commercial premises, light industrial units and ancillary spaces that suffer from occasional water ingress and require a compact, robust twin pump sump station with professional build quality.
New Build Basements And Extensions: Integrated into new below ground structures at design stage to provide long term ground water management, supporting structural warranties, insurance requirements and modern expectations for dry, usable basements.
Retrofit Where Higher Resilience Is Required: Selected for projects where a single pump sump is considered insufficient and where additional security, redundancy or capacity is required due to site conditions, high water tables or client risk appetite.
Chamber Material: Manufactured from MDPE for strength, impact resistance and long term durability in below ground environments subject to moisture and soil loads.
Chamber Maximum Volume: Provides an overall capacity of approximately 165L, giving significant storage for incoming ground water before pump activation and reducing short cycling.
Volume Below Inlets: Offers around 110L of working volume beneath the inlet level, improving pump run times, efficiency and longevity by allowing each cycle to move a meaningful volume of water.
Inlets: Equipped with four fixed inlets at 90 degree orientations, allowing flexible connection of incoming drainage pipework and perimeter channels from any side of the chamber.
Inlet Seals: Supplied with a choice of seals including 1 x 110mm, 1 x 55mm to 75mm and 1 x 35mm to 50mm to suit common drain and cavity drain outlet sizes in ground water systems.
Discharge Connection: Uses a 40mm solvent weld discharge outlet for straightforward integration with standard waste and pressure pipework systems used in UK basement drainage.
Internal Pipework Standards: All internal pipework and fittings are manufactured to EN1452 2 and 3, ISO161 1, BS21, DIN2999 and ISO7, with threaded fittings rated to 12 bar for reliable performance and long service life.
Non Return Valve: Incorporates an EDPM rubber swing check valve on the discharge manifold to prevent backflow into the chamber when pumps stop, protecting against reverse flow and water hammer.
Pumps: Fitted with two KSB AmaDrainer 301 automatic submersible pumps for ground water applications, each with integrated float control for automatic starting and stopping in response to water level within the chamber.
Chamber Use: Designed for installation in solid, cavity or timber frame constructions where a below slab or below floor sump arrangement is required as part of a ground water management strategy.
Riser And Lid: Supplied with a Clark Drain CD452 driveway lid and frame rated to 35kN load, providing a strong, durable access cover suitable for screeded floors, plant areas and light driveway or garage traffic.
Installation of the Platinum AquaSump PRO Mini – Ground Water Sump Station must only be carried out by competent personnel familiar with below-ground construction, pumped drainage systems and basic electrical safety. All electrical work, including the connection of the twin KSB 301 Amadrainer automatic pumps, should be undertaken by a qualified electrician in accordance with BS 7671 and current IET wiring regulations. Before starting work, complete a site-specific risk assessment that considers excavation hazards, confined spaces, manual handling, slips and trips, and potential flooding during installation. Use appropriate personal protective equipment including safety boots, gloves, eye protection and, where cutting or breaking concrete, hearing protection and respiratory protection.
Excavations for the sump station can be deep and confined; they must be properly supported or battered back in accordance with current HSE guidance to prevent collapse. Never enter an unsupported excavation and never work alone when installing sump chambers. De-energise and lock off electrical supplies before handling pumps or internal pipework, and test circuits dead with suitable equipment. Avoid open flames and sparks near the installation and do not use petrol-driven equipment in confined spaces where exhaust fumes could accumulate. Only lift the chamber and pumps within their rated weights and use mechanical lifting aids if necessary to avoid injury.
Begin by confirming that the Platinum AquaSump PRO Mini is being used for clean or slightly silty ground water only and not for foul drainage, sewage, hydrocarbons or trade effluent. Review any waterproofing design, drainage layout and structural drawings so the sump position suits the overall ground-water management strategy and complies with BS 8102 guidance on pumped cavity drainage. The sump should normally be located at the lowest practical point of the slab or drainage channel network, close to incoming ground-water drains, yet accessible for future inspection and maintenance.
Set out the chamber footprint using the manufacturer’s dimensional data, allowing sufficient working room all round the excavation for safe backfilling and for the connection of the four fixed inlets. Check for existing services such as gas, electricity, water, telecoms and drainage using service drawings, cable avoidance tools and trial holes where required. Confirm that incoming pipe invert levels will discharge into the sump with an adequate fall, typically at least 1:60, and that the discharge pipework can rise from the chamber to the chosen outfall within the available pump head shown on the performance curves. Ensure the final discharge point, such as a surface water sewer or soakaway, is permitted and sized for the expected flow.
Where the chamber is installed beneath a driveway or other trafficked area, verify that the Clark Drain CD452 lid and frame are suitable for the anticipated loading and that surrounding ground or slab construction has been designed accordingly. Plan the route for the 40mm solvent-weld discharge pipe and for any separate conduits that will carry pump power and alarm cables clear of water. Identify a safe, dry location for the electrical isolator, control equipment and any high-water alarm panel.
The Platinum AquaSump PRO Mini is intended for the collection and pumping of ground water in domestic and light commercial applications. It must not be used for raw sewage, fats and oils, heavily silt-laden water, or liquids containing aggressive chemicals that could attack MDPE, PVC, rubber seals or pump components. The system is designed as a private, non-adopted pump station and is not a substitute for a properly designed adoptable foul pumping station. In all cases the designer or installer remains responsible for confirming that the pump duty, storage volume and emergency arrangements are appropriate for the risk category of the project under BS 8102.
Good practice is to provide an external isolation valve on the rising main so that pumps and internal pipework can be removed for service without draining the downstream system. A non-return swing-check valve is provided to limit backflow when the pumps stop; ensure this valve remains accessible and correctly orientated. In higher-risk basements and valuable plant rooms, consider a separate high-level alarm and, where appropriate, secondary power arrangements such as a backup generator or battery inverter so that water ingress is managed during a mains failure. Always maintain clear access to the lid for inspection; do not permanently cover the chamber with fixed flooring or built-in furniture.
Mark Out And Excavate: Set out the chamber position on the slab or ground using the dimensional information provided. Excavate to a depth that allows for a level, structural base beneath the chamber and provides sufficient cover over the lid to suit the finished floor or driveway build-up. The excavation should be large enough to permit comfortable working space on all sides while still allowing proper backfilling. Support or batter the sides as necessary for safety and remove any loose material from the bottom.
Construct The Base: Form a level concrete blinding layer, typically 100mm thick, using a strong mix and compact it well. The base should extend beyond the footprint of the chamber to provide adequate bearing area and resist flotation if ground water levels rise. In high water-table locations it is good practice to anchor the chamber to the slab using stainless or galvanised fixings and straps, or to cast a structural base slab designed by the project engineer. Allow the base to cure sufficiently before proceeding.
Position The Chamber: Lower the MDPE chamber carefully onto the prepared base, ensuring it sits level and stable. Rotate the unit so that the four fixed inlets align with the intended incoming pipe routes and that the discharge connection faces the planned rising main direction. Check the height of the chamber relative to the proposed finished floor to ensure the Clark Drain CD452 driveway lid will finish flush with surrounding construction. Temporarily brace or weight the chamber if necessary to prevent movement during backfilling.
Connect Incoming Drains: Determine which of the available inlet positions will be used, taking account of pipe gradients and accessibility. Cut or drill the inlet openings according to the chosen seals and push the 110mm, 55–75mm or 35–50mm pipes into place so they pass through the chamber wall and into the sump by a suitable distance. Fit the supplied rubber seals or bushings tightly around the pipe to form a watertight connection. Ensure all incoming drains fall toward the chamber and are properly bedded and surrounded in granular material or concrete in line with the drainage design.
Install Discharge Pipework And Valves: From the internal 40mm solvent-weld discharge connection, build the riser assembly so that it passes up and out of the chamber without fouling the pumps or floats. Incorporate the EDPM rubber swing-check non-return valve in the vertical section according to the flow arrow, and arrange for an external isolation valve to be installed just outside the chamber in an accessible location. Solvent-weld all joints carefully, observing manufacturer drying times. Route the rising main to the discharge point with as few bends as possible and with suitable support at changes of direction. Check that the total static lift plus frictional losses do not exceed the twin KSB 301 pump duty shown in the pump-performance curves; if in doubt, consult a pump engineer.
Position The Pumps: Place the two KSB 301 Amadrainer automatic pumps on the sump floor, ensuring they stand on a firm, level surface and are not sitting directly on silt or debris. Arrange them either side of the discharge pipe so that both can be removed individually without dismantling the pipework. Confirm that each pump’s integral float switch has unrestricted movement and cannot snag on the chamber walls or pipework; adjust cable lengths and apply suitable cable ties or supports as necessary. One pump will normally act as the duty pump with the second configured as assist or standby, depending on the control strategy provided by the electrician.
Route Power And Control Cables: Take the pump power cables up and out of the chamber, preferably through separate cable ducts or grommeted openings so that water cannot track along them. Do not make electrical joints within the sump interior. Position the external switch-fused spur and any control or alarm panel in a dry, accessible area above flood level, and label it clearly as serving the sump station. The electrician should connect the pumps in accordance with current regulations, ensuring appropriate over-current protection and discrimination. Where a high-level alarm float or probe is fitted as part of the project design, install and test it at this stage.
Backfill Around The Chamber: Begin to backfill evenly around the outside of the chamber using pea shingle or fine granular material free from sharp objects. At the same time, partially fill the chamber with clean water to counteract external pressure and stabilise the unit. Compact the backfill in shallow layers, taking care not to distort the chamber walls or dislodge pipe connections. Continue this balanced filling and backfilling until the chamber and surrounding ground reach the design level beneath the lid or surface finish.
Fit The Lid And Finish Surrounding Surfaces: Install the Clark Drain CD452 driveway lid and frame in accordance with the manufacturer’s recommendations, ensuring the frame is fully supported and level with the intended finish. Build up the surrounding floor screed, slab or paving so that loads are transferred correctly and surface water drains away from the lid rather than towards it. Confirm that the lid can be removed in future without breaking out significant construction.
Commissioning And Functional Testing: With the chamber backfilled and the lid in place, carry out a full wet test of the system. Fill the sump with clean water via the incoming drains or directly into the chamber until the duty pump activates. Observe the pump cycling, check that water discharges freely at the outfall and verify that the non-return valve prevents significant backflow when the pump stops. Continue filling until the second pump is called into operation if a duty-assist arrangement is used, and confirm that both pumps cut in and out correctly. Inspect all pipework and connections for leaks and check that the isolation valve operates smoothly. Record the test in the installation log and hand copies of any pump documentation to the building owner.
Explain to the owner or occupier that the Platinum AquaSump PRO Mini is an automatic ground-water sump station designed to protect the structure from rising ground water and seepage beneath or around the building. Under normal circumstances the system will start and stop automatically as water levels in the chamber rise and fall; no manual intervention is required. There will be a short period of pump noise during each cycle and occasional vibration in the discharge pipe, both of which are normal. The lid should remain accessible at all times, and the area above the chamber should not be permanently obstructed by fixed furniture or heavy stored items that could impede maintenance.
Advise the user not to dispose of paint, cement washings, oils, fats or other contaminating liquids into gullies or channels feeding the sump, as these can foul the pumps and seals. Highlight the location of the electrical isolator and any alarm panel, and agree simple procedures for what to do in the event of an alarm activation, unusual noise, continuous running, or a power cut. In higher-risk basements it is sensible to have contingency measures in place such as a backup generator or temporary pumping arrangements for prolonged power outages.
Routine maintenance is essential to ensure reliability. As a minimum, the sump station should be inspected at least once a year in domestic situations and more frequently where ground-water inflows are high or the consequences of flooding are severe. Before any inspection or maintenance work, isolate the electrical supply using the labelled switch-fused spur and confirm that power is off. Remove the lid carefully and visually inspect the chamber for silt build-up, debris, or signs of corrosion or damage to the internal pipework.
Lift each pump in turn using the integral handle, taking care not to strain the power cable, and hose down the intake screen to remove sludge, stringy material or scale. Check that the float switches move freely through their full range and do not foul the pipework or chamber walls. Examine the non-return valve for signs of leakage or blockage and confirm that it opens and closes smoothly; replace worn seals where necessary. Operate the external isolation valve fully closed and open to prevent it seizing. After cleaning, refit the pumps, restore power and perform a functional test by adding water to the chamber until at least one full pump cycle has been observed.
Long-term reliability is improved by keeping a simple log of inspections, tests and any remedial work carried out on the sump station. Encourage the owner to arrange a regular service visit from a competent specialist, particularly where the system forms part of a critical waterproofing design under BS 8102. If any abnormal conditions are noticed between services, such as excessive noise, vibration, burning smells, frequent cycling or failure to start, the system should be isolated and investigated promptly rather than left to run in a potentially damaged state.
In the event of building alterations, refurbishments or changes of use, the sump station’s capacity and pump duty should be reviewed to confirm that they remain adequate for the revised risk profile and drainage layout. Ensure that any additional drains or channels connected to the chamber are clean water only and that connections are made using appropriate seals and solvent welds. Replacement pumps and components should match the original performance characteristics unless a qualified engineer has re-designed the system.
The performance curves shown on the technical data sheet for the KSB 301 pumps illustrate how flow rate reduces as the total discharge head increases, taking account of both static lift and friction losses. When designing or modifying the system, it is important that the duty point – the combination of head and flow demanded by the installation – lies within the reliable operating region of the pumps so that they neither overload nor fail to deliver sufficient capacity during heavy ground-water events. Where there is uncertainty, a specialist pump engineer or waterproofing designer should be consulted to verify the calculations.
All internal pipework and fittings used within the Platinum AquaSump PRO Mini are manufactured to recognised standards such as EN1452-2/3, ISO 161/1, BS 21, DIN 2999 and ISO 7, with threaded fittings rated to 12 bar, providing a robust assembly for typical domestic and light-commercial ground-water duties. When correctly installed, commissioned and maintained, the system provides an effective means of managing ground water beneath basements and below-ground structures, working quietly in the background to protect the building fabric and internal finishes from dampness and flooding.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station is a compact, twin pump sump system that sits below the basement or ground floor slab and quietly removes ground water before it can build up and cause damp or flooding. It consists of a tough 165L MDPE chamber that collects water from perimeter channels, land drains or cavity drain membranes, and two automatic KSB AmaDrainer 301 submersible pumps that switch on and off via float switches to discharge the water through a 40mm solvent weld outlet. Around 110L of the chamber volume is available below the inlets, which provides a controlled working volume so the pumps run for sensible periods rather than short, damaging bursts. Inside the Platinum AquaSump PRO Mini the pipework is built from pressure rated components and includes an EDPM swing check non return valve that stops water flowing back into the chamber once the pumps stop. The system has been developed as a professional grade solution for Type C cavity drain waterproofing and other basement drainage schemes where a reliable, automatic and low noise ground water sump station is needed.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station is aimed at basements, cellars and other below ground structures where ground water ingress is either already a problem or is expected to be an ongoing risk. It is commonly specified for domestic basements, semi basements and cellars that are being converted to habitable rooms, as well as for plant rooms, service voids and small commercial or light industrial spaces that need dependable protection from seepage. Because it integrates easily with Type C cavity drain membranes and perimeter channel systems, it is a natural choice in projects designed under BS 8102 that adopt a fully drained protection strategy rather than relying solely on external tanking. The Platinum AquaSump PRO Mini is equally suitable in new build projects where ground water management is being designed in from the outset and in refurbishment schemes where historic damp issues must be controlled without major external excavation. It is particularly attractive where higher resilience is required, for example in valuable or critical spaces where a standard single pump sump would not offer enough redundancy.
A) In day to day use the Platinum AquaSump PRO Mini Ground Water Sump Station acts as a collection point and automatic pump station for ground water that reaches the basement. Water from perimeter channels, land drains or cavity drain outlets flows into the MDPE chamber through the fixed inlets and accumulates in the lower 110L working volume. When the water level rises far enough it lifts the float on the duty KSB AmaDrainer 301 pump, which switches the pump on so that water is pumped out through the internal manifold, the EDPM swing check non return valve and the 40mm solvent weld discharge pipe to a lawful outfall such as a surface water drain or soakaway. As the level drops, the float falls and the pump stops, and the system waits for the next cycle. If the inflow exceeds the capacity of the duty pump or if the duty pump fails, the second pump can be arranged to start at a higher level as a standby or assist pump, which provides resilience during peak events. When correctly installed and powered the Platinum AquaSump PRO Mini operates automatically without user intervention other than routine inspection and maintenance.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station uses two KSB AmaDrainer 301 automatic submersible pumps because serious ground water control in basements benefits from both redundancy and the ability to handle peaks in inflow. In a duty and standby arrangement one pump is configured to start and stop at normal operating levels while the second is set to come in at a higher level if the duty pump cannot cope or if it fails, greatly reducing the risk of a flood due to a single component failure. Alternatively, in a duty and assist arrangement the floats can be positioned so that the second pump joins in when water levels are unusually high, for example during periods of heavy rainfall or temporary rises in the water table, which increases the effective capacity of the system. Using twin pumps also allows maintenance to be carried out more flexibly because the Platinum AquaSump PRO Mini can often operate on one pump while the other is removed, inspected or replaced. The AmaDrainer 301 units are proven basement drainage pumps that offer heads in the order of 6 to 6.5 metres and flows up to around 10,000 litres per hour under favourable conditions, so in twin configuration they give a robust platform for demanding applications.
A) The MDPE chamber at the core of the Platinum AquaSump PRO Mini Ground Water Sump Station is designed specifically for below ground use, with a total volume of around 165 litres and approximately 110 litres of working capacity below the inlet level. Being rotationally moulded from MDPE, it has excellent impact resistance, chemical resistance and long term durability under damp, soil loaded conditions when correctly supported with granular or concrete backfill. The chamber incorporates four fixed inlets set at ninety degrees, which makes it straightforward to connect perimeter channels, land drains or other collection pipework from any side and simplifies layout in awkward shaped basements. Supplied seals in 110mm, 55 to 75mm and 35 to 50mm sizes allow the most common drain and cavity drain outlet pipes to be connected securely and watertightly without awkward fabrication. The generous working volume means that when the pumps start they have a meaningful body of water to move, which reduces rapid on off cycling and improves efficiency and pump life. Overall, the chamber design helps the Platinum AquaSump PRO Mini provide both hydraulic performance and practical, installer friendly connectivity.
A) Each KSB AmaDrainer 301 pump in the Platinum AquaSump PRO Mini Ground Water Sump Station is a fully floodable, single stage submersible motor pump designed for clean or slightly contaminated ground water with small particle sizes. In broad terms these pumps offer heads of around 6 to 6.5 metres and maximum flows in the region of 10,000 litres per hour under favourable conditions, although the actual duty achieved will depend on the static lift and friction losses in the 40mm discharge line. In a typical basement installation with a modest vertical lift and a sensibly routed rising main, a single pump will usually be more than adequate for the steady inflows seen in cavity drain systems, and the presence of the second pump provides either additional peak capacity or standby redundancy. The Platinum AquaSump PRO Mini therefore combines strong hydraulic capacity with automatic float control and an EDPM swing check non return valve to ensure water moves efficiently out of the chamber and does not flow back once the pumps stop. During design, the total head and expected inflow rates should always be checked against the pump performance curves so that the system duty lies within the recommended operating envelope.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station has been developed to integrate cleanly with modern Type C cavity drain systems where water is collected in controlled channels behind studded membranes rather than being excluded at the outer face of the structure. In a typical layout, studded membranes line the walls and sometimes the floor, and water that appears behind them is guided by perimeter channels towards the sump station. Those channels discharge into the Platinum AquaSump PRO Mini via one or more of the fixed inlets on the MDPE chamber, using the supplied seals to suit the pipe sizes recommended by the membrane manufacturer. Once inside the chamber, the water is managed by the twin KSB AmaDrainer 301 pumps, which automatically pump it away to a suitable outfall whenever the water level rises to the float switch set points. This approach allows the membrane system to work into a reliable, pump driven collection point rather than relying on uncertain soakaways or random drainage connections. When installed correctly, the combination of cavity drain membranes and the Platinum AquaSump PRO Mini gives a robust drained protection system that is widely accepted by structural warranty providers and aligns with BS 8102 guidance.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station should be located at the hydraulic low point of the drained area so that all incoming ground water can fall naturally to the chamber inlets. In many basements this will be in a corner or along an external wall, but the final position should be chosen after reviewing proposed floor levels, membrane layouts and the available route for the 40mm discharge line to reach an appropriate outfall. The chamber needs to sit on a firm, level base such as compacted pea gravel or a concrete blinding layer and must have adequate clearance around it for safe backfilling and for future maintenance. The Clark Drain CD452 driveway lid supplied with the Platinum AquaSump PRO Mini should finish flush with the surrounding floor screed or slab while still being removable without dismantling fixed finishes. It is also important to ensure that the chamber and cover are not located directly under fixed furniture or heavy plant that would prevent access. Good positioning at design stage makes the system more effective, easier to service and less intrusive in daily use.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station is supplied with a 40mm solvent weld discharge connection so that installers can construct a rising main using standard 40mm waste or pressure pipe. Inside the chamber the pump outlets feed into a 40mm manifold that includes the EDPM rubber swing check non return valve, and from there the pipe passes through the chamber wall and rises towards the chosen discharge point. The discharge route should be kept as short and as straight as practical, with swept bends used instead of tight elbows wherever possible to reduce friction losses, and pipework should be clipped or supported adequately to prevent stress on the joints and tank connection. The outfall must be to a lawful receiving system such as a surface water drain, soakaway or other approved termination, and any connection to public sewers must comply with the requirements of the sewerage undertaker. It is good practice to fit an external full bore isolation valve on the 40mm line in an accessible position so that the Platinum AquaSump PRO Mini can be serviced without draining the whole system. Penetrations through walls and floors should be sleeved and sealed to prevent water tracking along the outside of the pipe.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station uses two 230V single phase KSB AmaDrainer 301 pumps, each with an integral float switch that controls automatic start and stop in response to water level in the chamber. Electrical supplies must therefore be provided in accordance with current IET Wiring Regulations and relevant Building Regulations, usually via individually protected circuits or switched fused connection units with 30mA RCD protection and isolators located above possible flood level. The float cables need to be routed neatly and secured so that each float swings freely without snagging on pipework or the chamber walls, and one float will normally be set at a lower level to act as the duty pump while the second is set higher for standby or assist operation. On higher risk or more complex projects, a dedicated pump control panel may be specified to alternate duty between pumps, provide timed exercise cycles and manage high level alarms. Whatever the arrangement, all electrical work on the Platinum AquaSump PRO Mini must be carried out by a competent electrician, and commissioning should include full functional testing through several pump cycles to confirm that the control strategy behaves as intended.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station is designed for the collection and pumping of clean or slightly silty ground water and similar relatively clean flows from cavity drain systems and perimeter channels, and it is not intended for foul sewage, kitchen waste, fats and oils, hydrocarbon contaminated liquids or aggressive chemicals. The twin KSB AmaDrainer 301 pumps are suitable for water that may contain small particles but they are not macerators and should not be asked to handle solids, rags or debris that would be associated with foul drainage. The MDPE chamber, PVC based pipework and rubber seals are robust in normal ground water environments but can be softened, embrittled or otherwise damaged by solvents, strong acids or alkalis. The Platinum AquaSump PRO Mini is also not designed or certified for explosive or flammable atmospheres, so any application involving volatile liquids or hazardous zones would require a different type of pump station. For best performance and long life, incoming drains and channels should be designed with appropriate filtration or gravel surrounds so that floating debris and large solids are kept out of the chamber.
A) Installing a Platinum AquaSump PRO Mini Ground Water Sump Station involves excavation, below ground working, handling heavy components and electrical connections, so a thorough approach to health and safety is essential. Before work starts a site specific risk assessment should identify hazards such as unstable excavations, water ingress during installation, the presence of existing underground services, manual handling risks, confined spaces, dust and noise. Excavations must be properly supported or battered back in line with current HSE guidance and must not be entered if there is any risk of collapse or sudden flooding, and lone working in basements or deep pits should be avoided. Suitable personal protective equipment, including safety footwear, gloves, eye protection, hearing protection for power tools and respiratory protection where cutting or breaking concrete, should be worn. All electrical work on the Platinum AquaSump PRO Mini must be carried out with supplies safely isolated and by a qualified electrician, and the final circuits must be protected by appropriate devices such as RCDs. Solvent weld adhesives and cleaning fluids should be used in well ventilated areas away from sources of ignition, and lifting of the chamber and pumps should be carried out using safe manual handling techniques or mechanical aids where necessary.
A) Proper site preparation for the Platinum AquaSump PRO Mini Ground Water Sump Station starts with confirming that the application is for ground water management only and that the expected inflow rates and discharge head fall within the capability of the twin KSB 301 pumps. Designers should review structural drawings, waterproofing details and drainage layouts to select a sump location that allows incoming drains and perimeter channels to fall naturally into the fixed inlets and that allows the 40mm discharge line to reach a lawful outfall without excessive length or too many bends. The excavation footprint should then be marked out with at least 150mm clearance around the chamber to provide working space and room for backfill, and the depth should be set to accommodate a level base beneath the chamber plus the full height to the finished floor or external surface. Before digging, all existing services such as gas, water, electricity and drainage must be located using plans, detection equipment and trial holes where necessary. In areas with high ground water levels, temporary dewatering arrangements may be required during installation so that the excavation remains safe and workable. Planning for the route of power and alarm cables and for the position of electrical isolators and control equipment is also part of good site preparation for the Platinum AquaSump PRO Mini.
A) When installing the Platinum AquaSump PRO Mini Ground Water Sump Station, several good practice measures help ensure long term reliability. The MDPE chamber must be placed on a level, well compacted base, typically pea shingle or a concrete blinding, and backfilled evenly with suitable granular or concrete material so that the walls are fully supported and not subject to point loading or distortion. Incoming drains should be connected using the correct seals supplied, with pipework cut square, pushed fully home and laid to an appropriate fall so that water flows freely into the sump. The internal 40mm solvent weld pipework should be dry assembled first to confirm alignment, and the EDPM swing check non return valve must be installed in the correct orientation so that backflow is prevented when the pumps stop. Float switches on the twin KSB 301 pumps should be secured so that each can swing through its full travel without snagging, and the duty and standby or assist levels should be set thoughtfully to suit the risk profile of the basement. Outside the chamber a full bore isolation valve on the discharge line, clear labelling of electrical isolators and maintaining easy access to the lid all form part of best practice when installing a Platinum AquaSump PRO Mini.
A) Commissioning the Platinum AquaSump PRO Mini Ground Water Sump Station involves checking both the hydraulic and electrical aspects of the installation to confirm that it operates correctly under real water conditions. After the chamber, inlet pipework and 40mm discharge line have been installed and backfilled and the Clark Drain CD452 lid fitted, a qualified electrician should connect the twin KSB AmaDrainer 301 pumps to their dedicated 230V supplies, set up any control or alarm panels and verify that all protective devices and isolators function as intended. The chamber is then filled progressively with clean water, either through the incoming drains or directly into the sump, so that the duty pump float lifts and activates the pump, allowing the installer to observe discharge at the outfall and check for leaks at joints and seals. As the water level falls and the pump stops, the non return valve should close quietly without significant backflow into the chamber, and the process can be repeated until the standby or assist pump has also been observed starting at the higher level if that mode is used. Any high level alarms should be tested by raising the water level to the alarm point. Commissioning records, including details of pump model numbers, measured running currents and confirmation of successful test cycles, should then be added to the project documentation for the Platinum AquaSump PRO Mini.
A) Although the Platinum AquaSump PRO Mini Ground Water Sump Station is designed for quiet, automatic operation, it still requires routine maintenance to remain reliable over its service life. As a minimum, an annual inspection is recommended in most domestic situations, and more frequent checks may be appropriate on sites with heavily silt laden ground water or where the consequences of flooding are severe. Before any work is carried out, the electrical supply must be isolated using the clearly labelled isolators and checked dead, after which the lid can be removed and the chamber visually inspected for silt build up, debris or damage. Each KSB AmaDrainer 301 pump should be lifted in turn, the intake screens cleaned of any sludge or foreign material and the floats checked for free movement without fouling. The EDPM swing check non return valve should be examined to ensure that the flap moves freely and seals properly, and the external isolation valve should be operated to prevent it seizing. After reassembly, the system should be test filled so that at least one full duty cycle, and ideally the operation of both pumps, is observed. Keeping a simple log of maintenance visits and findings will help track the condition of the Platinum AquaSump PRO Mini and support any warranty or insurance requirements.
A) The Platinum AquaSump PRO Mini Ground Water Sump Station already offers a high level of resilience through its twin KSB AmaDrainer 301 pumps, but many designers and clients choose to add further protection where the consequences of a flood would be particularly serious. A high level alarm, triggered by a separate float or probe inside the chamber, can warn occupants if water rises above the normal operating range, providing early notice of issues such as a failed pump, a blocked discharge line or a prolonged power outage. In some critical installations, such as high value basements or plant rooms, a backup power arrangement may also be considered so that at least one pump can continue operating for a period during mains failure, though this must be properly engineered and maintained. Even where backup power is not provided, it is vital that the supply circuits for the Platinum AquaSump PRO Mini are clearly labelled, RCD protected and not casually switched off as part of routine energy saving. Alarms and any secondary power systems should be tested regularly as part of the overall maintenance regime so that they are likely to function as intended during an emergency.
A) Compared with a simple single pump sump, the Platinum AquaSump PRO Mini Ground Water Sump Station offers significantly greater resilience, capacity and build quality, which makes it more appropriate for serious basement waterproofing projects. The twin KSB AmaDrainer 301 pumps provide redundancy so that the system can continue working even if one pump fails, and they can be arranged in duty and standby or duty and assist modes to match the risk profile and inflow characteristics of the site. The 165L MDPE chamber with 110L working volume below the inlets gives a generous buffer so the pumps run for longer, more efficient cycles rather than short bursts, and four fixed inlets at ninety degrees make connecting perimeter channels and drains far more flexible than many small single pump units. Internal pipework in the Platinum AquaSump PRO Mini is built from components conforming to recognised standards, with a properly specified EDPM swing check non return valve and a 40mm solvent weld discharge outlet ready for professional integration. The heavy duty Clark Drain CD452 lid also allows the station to be installed unobtrusively under floors or light traffic areas. All of these factors combine to make the Platinum AquaSump PRO Mini a more robust and maintainable choice where the basement must remain dry over many years.
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