Plumbing problem: no water.....

Pattern Welded Blaa

Hi,
I've an unusual plumbing problem. The upstairs attic tank is full, but the upstairs cold taps and cisterns have no water.
I've fixed the problem several times by attaching a hose to the kitchen sink (mains supply) and pumping the water to the upstairs taps. It works for a few days, then the same problem returns.
Any ideas? If there is a leak where air bubbles are getting in, how do I find it......no sign of damp spots yet.....
Any help will be greatly appreciated!
G

richieburke01

Maybe check the pipe coming from the bottom part of the attic tank make sure it is falling downwards
It is under gravity and water doesn't go uphill
Is the ballcock in the attic tank filling fast enough to top up tank

Pattern Welded Blaa

Hi - thanks for the reply - the ballcock is fine, the tank is full. Once the blockage/airbubble has been shifted by the mains pressure, the water flows with good force indicating there is good gravity flow

richieburke01

Sounds like you are running out of water in the tank

Sleeper12

richieburke01 wrote: »

Sounds like you are running out of water in the tank

I agree. Just because the tank is full when you have a look doesn't mean it isn't empty when you are getting the airlock. Your ball valve might need replacing or its possible there is a leak underground on the street. This will cause the tank to fill slowly.

Pattern Welded Blaa

The mystery still persists.... since the last mains pressure fix the water is still running. However the tank is full when this problem occurs, so somehow there is a blockage or an air leak in the pipes.