System 40 and 90 fitting guide
See how easy it is to fit a water filter yourself at home with these simple steps. All fittings are push-fit, with a self-piercing valve to add to your water mains.
How to fit your System 40 water filter
Follow the six simple stages below to connect your System 40 under-sink water filter.
1
Secure the bracket to the mains pipe
Position the bracket around the copper mains pipe and tighten it securely before fitting the valve.
2
Fit the self-piercing valve
Screw the self-piercing valve into the bracket until it is seated firmly and ready to connect.
3
Connect the tube to the tap fitting
Push the blue tube fully into the push-fit tap connection to create a secure seal.
4
Connect the inlet tube to the filter
Run the tube from the mains connection into the bottom inlet of the System 40 filter.
5
Connect the outlet at the top
Fit the second tube into the top outlet of the filter, ready to feed the drinking water tap.
6
Push the hose into the tap
Push the outlet hose fully into the tap connection so filtered water can flow to your tap.
Always turn off the mains water supply before fitting. If you are unsure at any stage, we recommend using a qualified plumber.