Cold water tap pressure problem?

[fungit]

Hi. We have a problem with our cold water taps in the bathroom.

When you turn it on up to about a half it runs ok but not very powerfully; if you turn it on too high, there is a distant clunk (once) and the water slows to a trickle - you then have to turn off the water for a while before you can get a semi-decent flow of water again. This happens to both the bath and sink cold taps.

Any help would be gratefully appreciated.

 

[stardanny]

Hi.

Is the cold water off the main or the storage tank?

Have you done anything to the plumbing system, valve?

Dan.

 

[fungit]

hmm. i think it's off the tank.

 

[swidders]

sounds like an airlock in which case you need to run a hose from your kitchen (or garden tap if more convenient) tap, which operates at mains pressure, into your basin sink. You may have to get an ordinary tap connector from b&q or similar to help with this.

Then open your basin tap and (with help from someone) turn on the mains water tap to purge air out, back up through the pipe to the header tank. while this is going on, it's worth turning on your bath tap to get water running through here too.

Disconnect and try the taps again, leaving them to run individually for a couple of minutes (especially since you've just overfilled the header tank a bit)

Hope it works - keep me informed