Setup, Compatibility & Care
Before installation, you must isolate the water supply using the service valves under the sink. You will typically need a set of adjustable spanners and a screwdriver to remove the tap handle and the decorative shroud.
- Isolate the water and open the tap to drain residual pressure.
- Carefully remove the handle screw cover and unscrew the handle.
- Use a spanner to unscrew the existing cartridge, noting its orientation.
- Clean the internal seating area to ensure no debris remains.
- Insert the new 3794R cartridge and tighten firmly—do not overtighten as this can damage the seal.
To prolong the life of your new cartridge, avoid using harsh abrasive cleaners on the tap body, which can eventually find their way into the valve mechanism.