DiaOseal | Tap Service Guide: Wall Assemblies & Basin Assemblies
How to replace a tap washer to stop a dripping tap, or change the type of tap washer.
1.TURN OFF THE MAIN WATER SUPPLY, usually located at the front of the premises. (See below for helpful hints.)
2. SPINDLE REMOVAL and REFACING
Turn the spindles on before unscrewing from the body.
Use your tube spanner to remove the spindle.
With the back of your knife blade, clean the body washer seat making sure it is flat and the channel is clean.
Using the tap reseater (refacing tool), to reface the seats within the recessed bodies using a smooth even pressure. Use your torch and make sure the seat is perfectly flat evenly around and clean.
With the vacuum and your little finger, clean out the body making sure it is free of brass shavings.
3. CLEAN and LUBRICATE
Remove the spindle completely from the bonnet by unscrewing.
Clean the body washer seat of the bonnet with your knife.
Clean the outer thread and washer seat of the bonnet with your wire brush.
Screw the thread cleaner into the bonnet to remove foreign matter from the bonnet.
Clean spindle thread using your wire brush and finish by wiping clean with your towel or rag.
Replace ‘O’ ring on spindle.
Lubricate the threads on the bonnet and spindle using Hydroseal tap lubricant.
Fully screw the spindle into the bonnet.
4. WASHER REPLACEMENT
Choose the right size fibre washer for the seat, do not use a narrow washer on a wide seat or vice versa
Place new valve in spindle.
Screw spindle into recess body and tighten being careful not to over tighten as it is possible to damage the fibre washer.
Place a tap handle on the spindle and screw the valve closed.
Turn off any another taps you have turned on within the bathroom.
Turn on main water supply.
Check the spindle penetrations for leaks and drips from the fibre washer.
Fully screw the spindle into the bonnet.
Helpful Hints
Isolation Valves
Unit location could be:
Next to toilet Under the sink.
Under the laundry tub
Outside bathroom window on wall.
Behind panel inside kitchen cupboard.
If unable to locate it, ask neighbours.
House location could be:
Along the front boundary/fence line.
Look at the neighbours, usually they’re in the same location for each property.
Recycled water suburbs have two meters; make sure you have the right one turned off.
In the vicinity of the front tap.
General Information.
If the house is very old the hot water service can be in the roof. Call a plumber if it is.
Before you unscrew the spindle turn on another set of taps in the bathroom, e.g. basin set or bath set to release any pressure and drain excess water from the lines.