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6000 Series AirGap™ Installation Guide
Removing your old valve
Step 2
Measure or mark the water level
inside your cistern. Drain all water
from the cistern and disconnect valve
supply pipework.
Step 3
Remove the old valve from the cistern
and ensure the fixing hole area is
clean and free of debris or anything
which may impair sealing.
Step 1
Turn off the water supply to the toilet
using isolation valve or mains
stopcock.