Hot Water noise

[Paul Cockhill]

Hi

I recently went to a house and fitted a new bath mixer tap and a new washbasin mixer tap. All went well and no problem. However the client had been complaining about noise coming from the hot water taps, this noise happens occasionally but when it does the noise is quite deafening. It is a sort of rubbing grinding noise.

I thought originally that it might be water hammer or pipes not being secure. The place is a small ground floor flat with a gravity hot water supply fed by a Fortic combination tank. The pipes look secure and I think water hammer is unlikely because there is little pressure on the hot water.

I also thought by changing the taps this might help but the noise happened again when I was testing the system. The noise stops immediately as soon as you turn the mixer to cold water.

Any thoughts or ideas from anyone??


Thanks

Paul

 

[wiggers]

I work on fortics quite a bit first fort of call would be putting in a new part 2 float valve and float on top of cylinder. pressure is always crap on fortics if cylinder is on same floor as outlet this does solve o lot of noise coming from hot tap
Give this a try

 

[Paul Cockhill]

Hi Wiggers

Thanks very much, do you think it is noise coming from the float valve or the valve

Paul

 

[JCplumb]

The float valve is the valve. I'm with wiggers on this one, change it.
But to be fair I'd have expected you to already have put your ear against the fortic header tank during the noise to diagnose it.
When you turn the mixer to cold you are lowering the pressure going to the header part of the fortic which is why it stops the noise.
Let us know we were right tomorrow evening 🙂

 

[Reg Man]

Can you get equilibrium part 2 ballvalves?

 

[Paul Cockhill]

to wiggers and Jcplumb, many thanks for your help on this problem. I installed a new ball valve and no noise and no problem so thanks very much for your help

Paul

 

[wiggers]

Your welcome mate