How to change a trough urinal cartridge
If your waterless urinal trough is starting to smell, draining slowly, or showing signs of leaking beneath the unit, it may be time to replace the valve/membrane cartridge.
A key sign of failure is a blocked or degraded GW6 membrane cartridge, which can lead to poor drainage, odours, and system failure if not replaced.
If the trough is blocked and not draining:
- Carefully remove any standing fluid and debris
- Wear appropriate PPE (gloves and eye protection)
- Avoid direct contact with waste water.
Watch the video on the right for a step-by-step guide on how to change the urinal cartridge.
Please note: Only take action if it is safe to do so.
- Remove any excess water and debris from the trough.
- Carefully remove the old GW6 membrane cartridge:
- First undo the centre screw on the top
- Then use grips to unscrew and remove the cartridge
- Clean the trough and trap housing using warm water only.
- Do not use harsh chemicals, bleach, or acidic cleaners, as these can damage the system
- Insert the new cartridge firmly, ensuring it is fitted the correct way round
- Refit the guard securely
- Replacement cartridges are available through Algeco
Once the new cartridge has been installed:
- Clean and sanitise using Uridan spray
- Available through Algeco
Important cleaning advice
- Do not use urinal cubes in this type of system, as they can block the filter and pipework
- Only use approved cleaning products to maintain performance
- Pour a cup of clean water into the trough
- Check that the system drains correctly
- Ensure there are no leaks beneath the unit
We recommend inspecting and replacing the cartridge as required depending on usage and site conditions to ensure consistent performance.
If problems continue after replacing the cartridge, please contact our maintenance support team.