Toilet cistern guide

The toilets at The Precinct are made by Argent. This guide covers how to access the cistern, turn off the water supply in an emergency, and replace the inlet valve if it fails.

Turning off the water supply

If your toilet is overflowing or leaking, do this first.

Toilet cistern interior showing blue isolation knob The cistern interior – the blue knob turns the water supply off
1
Remove the flush fascia – this is the silver panel on the front of the cistern. Lift the bottom of the panel out vertically, then pull it away from the wall.
2
Turn the blue knob to switch the water supply OFF. You'll see it clearly once the panel is off – it's the blue plastic knob shown in the photo above.

Replacing the inlet valve

The part that most commonly fails is the inlet and water level unit – not the flushing mechanism. At The Precinct this is the Argent B3220-D, which costs around $30 to replace.

How to repair the Argent B3220-D cistern inlet valve Argent B3220-D repair diagram – clean or replace the rubber diaphragm
What you'll need: Small flat screwdriver · Vinegar · Cloth · Rubber diaphragm B3220-D (optional spare part)
1
Turn off the water supply using the blue knob as described above.
2
Remove the inlet valve cap – unclip or unscrew it with a quarter turn anti-clockwise.
3
Note how the diaphragm fits before removing it, so you can reassemble correctly.
4
Remove and inspect the rubber diaphragm – if it's hardened or misshapen it needs replacing. If it looks okay, clean it and the plastic filter with vinegar and a cloth.
5
Reassemble in reverse order – replace the diaphragm, refit the cap, then turn the water back on.

Where to source part B3220-D

Last known local retailer Tuck Plumbing
08 9444 7988
Argent distributor info@argent.com.au
1300 364 748
Approximate part cost ~$30