No water from bathroom sink cold water tap

Wikikenkey

Thanks all. I will do these checks.

Just wanted to mention though that there are three bathrooms in the house. Only one of them has lost water flow to the cold water tap. If it was a problem in the tank in the loft wouldn't that have affected the other two cold water taps?

1984ReturnsForReal_2

Wikikenkey wrote: »

If it was a problem in the tank in the loft wouldn't that have affected the other two cold water taps?

Depends if the others are fed by the tank or mains.

Most likely is a washer coming off the tap valve or a broken valve .

deanos

Do you have a service valve on the pipework ?

Wikikenkey

Deanos

Sorry, where would the pipework be? Which should I be looking at?

deanos

The pipework under the tap can have one of these valves on so you can shut off the water to change the taps, it may be not be fully open or sometimes can become blocked

ormus

the tap itself is looking more like the culprit.

Wikikenkey

Thanks all. I had the BG man round and the problem was an airlock. All sorted taps now flowing beautifully.

27col

ormus wrote: »

the cold water to the kitchen sink is fed direct from the mains. for drinking.
the bathroom basin tap is fed from the cold water storage tank in the loft.
(hence dont drink it).
so the problem could be inside the basin tap, or the cws tank, or in the pipeline.

I've been cleaning my teeth and taking tablets using the tank fed cold water from the cistern for over 40 years, without any ill effects. Of course, you do have to make sure that no foreign objects can enter the tank. I would not do it using water from some cisterns I have worked on, though. My brother in law in Australia only had rainwater from the roof to use. This was stored in a very large concrete tank near the house.

27col

My house uses water from the cold tank in the loft, as did my one before that. I have been cleaning my teeth and taking tablets using the tank water for over 50 years, without ill effects. Obviously, it follows that the tank must be well covered with a tight fitting lid.
As a matter of interest, the only drinking water that my BIL in Australia ever had was rainwater from the roof gutters(which were full of spiders webs) The water was stored in a large concrete tank in the garden.