A tap which leaks more when supply isolated

veryintrigued

Bendy_House said:

Is this a ceramic tap?

 It's not unheard of for these to leak (more) when there's reduced pressure to a partly-worn tap, as the mains pressure actually pushes up on the bottom ceramic disc and helps it to seal against the top one. Reduce the pressure, and they part = leak.
You might even notice that ceramic taps are more stiff in operation with a high mains pressure, for the same reason. Turn the mains off, and they become loose.
(You are now going to tell me it's a conventional tap...)

Thanks for the reply.

It's appreciated.

But yes it's a stainless steel metal 'hook' shaped mixer tap

veryintrigued

400ixl said:

It will be because the water pressure is putting pressure on a component to close the leak and when the pressure is reduced this seal is not as good.

Thanks too for the reply.

Bendy_House

veryintrigued said:

Bendy_House said:

Is this a ceramic tap?

 It's not unheard of for these to leak (more) when there's reduced pressure to a partly-worn tap, as the mains pressure actually pushes up on the bottom ceramic disc and helps it to seal against the top one. Reduce the pressure, and they part = leak.
You might even notice that ceramic taps are more stiff in operation with a high mains pressure, for the same reason. Turn the mains off, and they become loose.
(You are now going to tell me it's a conventional tap...)

Thanks for the reply.

It's appreciated.

But yes it's a stainless steel metal 'hook' shaped mixer tap

Are the tap handles quarter-turn on-to-off? Or multi-turn? If the former, then chances are it's as I suggested. If the latter, I ain't got a clue.

veryintrigued

Bendy_House said:

veryintrigued said:

Bendy_House said:

Is this a ceramic tap?

 It's not unheard of for these to leak (more) when there's reduced pressure to a partly-worn tap, as the mains pressure actually pushes up on the bottom ceramic disc and helps it to seal against the top one. Reduce the pressure, and they part = leak.
You might even notice that ceramic taps are more stiff in operation with a high mains pressure, for the same reason. Turn the mains off, and they become loose.
(You are now going to tell me it's a conventional tap...)

Thanks for the reply.

It's appreciated.

But yes it's a stainless steel metal 'hook' shaped mixer tap

Are the tap handles quarter-turn on-to-off? Or multi-turn? If the former, then chances are it's as I suggested. If the latter, I ain't got a clue.

They are indeed the former!

And I have noticed looseness when the pressure is off.

Sounds like you have cracked it!

Thank you!

bris

veryintrigued said:

@bris I'd suggest you put your readers on and have another go.

Have another go at what, taps drip when faulty, a closed tap should not drip.

Bendy_House

Yup - it's faulty. Worn. VI is aware of this.

Can be fixed by replacing the cartridges, VI, or by a new tap...

badger09

Bendy_House said:

Yup - it's faulty. Worn. VI is aware of this.

Can be fixed by replacing the cartridges, VI, or by a new tap...

veryintrigued is going one further and replacing the whole kitchen. Not very MSE, but definitely a solution.

Bendy_House

Man, just because the tap is dripping. Tsk...

badger09

Bendy_House said:

Man, just because the tap is dripping. Tsk...

And it was already one of those expensive new fangled stainless steel hook shaped jobbies. Sheesh...

Belenus

Bendy_House said:

Man, just because the tap is dripping. Tsk...

A bit like getting a new car because the ashtrays are full on the old one.