I have a problem with a mixer tap, the cold tap does not close
properly, it spins past the closed point and opens again, could this
be fixed with a washer or do I need to replace the whole tap unit?
Thanks in advance
It depends on the style of tap. I take it the tap is a half turn on/off
design ? If it is, then it depends on how the innards work. The tap may
have had a positive stop key moulded into the body, so if it is now passing
that point, then the key has been worn down and is allowing the piston the
travel passed and this is causing it to go back to the open position again.
The other designs inside these styles of tap are a ball with a hole through
the middle, that when turned to where the holes match up with the opening in
the spout outlet the water flows. Or it could be a geared thread which
lifts a piston over a certain distance and allows the water to flow. And
the other design is a quartered circle, like a chunk out of a pie, which,
when turned, allows water to flow passed the open section and out the spout.
You will need to turn the water off and get the head off the tap to see
which style yours is before a proper diagnosis can be made.
Thanks BigWallop, but I think the mixer tap bit may have thrown you off
track a bit, for all intents and purposes the actual tap control looks and
operates in exactly the same way as a conventional sink tap, it turns on and
off in the same way, but it's as though the tap has been forced past its
natural closed position.
I do want to change the unit eventually but the one I want to change it for
is expensive, and I would need to change the plug hole to match (is this an
easy job?), I hoped I could do that after Christmas and just get away with
just replacing a washer for now.
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