A reverse-pressure tap is similar
to the normal tap only upside down.
The washer moves upwards to the seat when the tap is turned.
To change a washer in reverse pressure taps there is no
need to turn off the water supply because when the body
is removed an internal check valve closes to prevent water
flow.
'Put the plug in' - Insert the
plug into the hole, this will save any small objects that
might fall from the tap during repair.
Method
Removing the body
Undo the nut above the body of the tap.
Once this is done the body can
be removed by undoing the tap as if you were turning the
tap on.
Don't be alarmed by the water that
runs, keep unscrewing the body until it comes off.
When the body is removed the internal
check valve will operate to stop the water.
Replacing the washer
By banging the nozzle of the body
empty out the inner workings of the tap.
Bang the nozzle of the body to loosen the inside.
Once the inside is loose it can
be emptied out to reveal the washer.
Prise the washer off with a screwdriver
and replace.
