Setup, Compatibility & Care
Before starting your installation, ensure the water supply to the cistern is completely isolated and the tank is drained. You will need to verify that your cistern diameter matches the 40mm (1.5 inch) thread standard.
- Remove the old siphon by unscrewing the back nut located underneath the cistern.
- Clean the mating surface on the cistern base to ensure a watertight seal.
- Insert the new S1-11 siphon, ensuring the sealing washer is correctly seated.
- Tighten the back nut by hand; avoid using excessive force with tools, which can crack the plastic or compromise the seal.
- Reconnect the flush lever and test for leaks before fully refilling the tank.
Regular care involves periodic inspection of the siphon's internal components for lime scale buildup, especially in hard water areas, which can be cleaned with a mild descaling solution.