How to Install the Wykamol Black Sump & Pump Kit

Installation overview — Wykamol Black Sump & Pump Kit 

1. Introduction

The Wykamol Black Sump & Pump Kit is designed to collect and discharge groundwater from Type C cavity drain waterproofing systems. The chamber houses a submersible pump and accessories, providing an automatic method of removing collected water to a suitable discharge point.

This step-by-step overview explains a typical installation sequence for illustrative purposes only. Actual methods vary with site conditions, drainage layout, membrane detailing, and local regulations.

2. Safety & Compliance

• Electrical connections and alarm systems must be installed and tested by a competent, qualified person.
• Provide safe access/egress, ventilation, and lighting. Follow site RAMS and PPE requirements.
• Confirm the intended discharge point is compliant and permitted. Fit air gaps/backflow protection where required.
• Do not install during flooding events or when groundwater pressure is excessive without a suitable temporary works plan.

3. System Overview

• Chamber: Black sump chamber with lid and inlets.
• Pump: Submersible pump with float/level control.
• Non-return valve: Prevents backflow on the discharge line.
• Discharge pipework: Typically, solvent-welded PVC or other compatible pipe to a compliant outfall.
• Accessories: Adapters, seals, grommets, alarm (if supplied/spec’d), power supply and isolation.

4. Tools & Materials

• Suitable cutting tools for pipework; solvent cement and cleaner (if applicable)
• Level, tape measure, marker, drill and core bits for wall penetrations
• Gravel/lean mix for chamber bedding; spoil removal equipment
• Pipe clips/supports, isolation valves (if specified), non-return valve
• PPE: gloves, eye/ear protection, dust mask/respirator as required

5. Location & Set-Out

• Select a position that allows gravity flow from perimeter drainage channels or floor membrane sumps into the chamber.
• Ensure a clear route to the discharge point (short, direct runs with minimal bends are preferred).
• Allow space for future servicing: removable lid, accessible valves, and visible alarm panel (if fitted).

6. Excavation & Chamber Placement

1. Mark out the chamber footprint, including bedding allowance.
2. Excavate to the required depth, allowing for a level, compacted base and bedding layer.
3. Install a stable bedding (e.g., compacted gravel or lean mix as appropriate) to create a flat, level platform.
4. Lower the chamber into position, check for level in two directions, and orient the inlet/outlet faces correctly.

7. Inlets from the Drainage System

1. Set inlet heights to allow gravity flow from channels or collection points into the chamber.
2. Core/fit inlet grommets or seals as specified. Insert pipework fully and seal per product guidance.
3. Maintain fall on incoming runs. Avoid dips and sharp bends that trap air or silt.

8. Pump Installation & Float Settings

1. Place the pump on the chamber base or on a stand if specified. Ensure it is stable and clear of debris.
2. Set float or level sensors according to the required on/off levels, ensuring adequate run time and protection against short-cycling.
3. Connect the discharge outlet to the non-return valve and rising main. Support pipework to avoid strain on fittings.

Note: If a twin-pump or duty/assist configuration is specified, follow the appropriate sequencing and spacing guidance.

9. Discharge Pipework & Non-Return Valve

• Install the non-return valve in an accessible location for maintenance.
• Run the rising main neatly to the discharge point with continuous fall after the high point to limit air locking.
• Clip/support pipework at regular centres. Seal wall penetrations and provide an external termination that prevents backflow or blockage.

10. Electrical Supply & Alarm

• Provide a dedicated, appropriately protected power supply with local isolation.
• Install alarm/monitoring equipment if supplied or specified. Position the panel where it can be seen and heard.
• Test polarity, RCD/RCBO operation, and confirm voltage meets pump requirements before commissioning.

11. Commissioning & Functional Testing

1. Flush the system. Fill the chamber with clean water to confirm pump start level, discharge performance, and stop level.
2. Check for leaks at all joints, especially around the non-return valve and penetrations.
3. Verify alarm function (if fitted) and record baseline operating levels for future maintenance.

12. Maintenance & Servicing

• Establish a routine service interval to check pump operation, floats, valves, and clean out silt build-up.
• Inspect and test alarms/backup power (if present). Replace worn components proactively.
• Keep the chamber lid secure and the area around the sump clear for rapid access.

13. Product Availability

All components required for this installation—Wykamol Black Sump & Pump Kit, non-return valves, discharge pipework, seals, alarms, and accessories—are available directly from Clever Shield Coatings. Use the search bar on our website or browse our product categories to locate the items you need.