no cold water in upstairs

OUTOFSYNC

Hi.

No cold water upstairs (2,x faucets and cistern).

Hot water in taps upstairs . Downstairs has hot and cold water.

Only one toilet upstairs. Need to fill cistern manually with a bucket of cold water from downstairs.

Any suggestions .

Thanks

slimjimmc

You say you have cold water downstairs but is it supplied from the storage tank in the attic? The potable water in the kitchen sink cold tap is mains/well fed.
Have you checked a stopcock or valve hasn't been closed off or that the cold outlet in the cold water storage tank in the attic hasn't become blocked?

OUTOFSYNC

Yes cold water downstairs is mains Fed.

I've been to attic , there are two water tanks, larger cold water and smaller one which I believe feds Hot water. Both are full of water and stopcocks seem to work. ( small one full to top, larger one about 3/4 full)

Any ideas where the valve to feed upstairs cold water (toilet bath and sink) is ? Would it typically be in attic ?

slimjimmc

The large tank is the storage for hot and cold taps, the small tank is usually the header for the heating system (boiler/rads circuit) so unrelated.
There may be a valve (stop-cock) in the hot press but it could be anywhere really, follow the outlet from the large tank in the attic.
If there are there flexible hoses going into the sink/cistern these may have a small valve too but it would be a strange coincidence for all to be closed.

OUTOFSYNC

Was in attic. I have a pumped shower . Just switched that on and water in tank drained and is being refilled.

There is a valve in attic from tank but it is open.

The pipes in attic are about a year old. I used the bath for the first time a couple of weeks ago. Cold and hot taps. I noticed that after initially working normally and filling bath the cold tap went down to a trickle.

But only since last night the Cistern is not filling in toilet and nothing from cold tap In bathroom sink.

So it's the cold water feed ?

slimjimmc

So bath, sink, cistern all out. Yeah it seems the problem is in the cold feed to the taps. There may be a blockage or an airlock. If the pipes are plastic is there any chance the pipe has got kinked or squashed somewhere (e.g. stuff moved around the attic) ?

The pumped shower would have it's own feed from the tank which would explain why it's still working fine.

OUTOFSYNC

Pipes are mostly copper but cold water feed to bathroom changes to plastic before it leaves attic. After that all pipes behind insulation and tiles. I Can't see how they would have become kinked ( evebthough I know very little about plumbing). How would air have gotten into the system (if that is the problem) ?

The bathroom is directly below attic.... So am I looking for a problem in 6 foot of piping behind wall ?

Dtp1979

OUTOFSYNC wrote: »

Pipes are mostly copper but cold water feed to bathroom changes to plastic before it leaves attic. After that all pipes behind insulation and tiles. I Can't see how they would have become kinked ( evebthough I know very little about plumbing). How would air have gotten into the system (if that is the problem) ?

The bathroom is directly below attic.... So am I looking for a problem in 6 foot of piping behind wall ?

Have you a mixer tap on your bath?

OUTOFSYNC

No seperate hot and cold taps

Mixer tap on sink tho

Dtp1979

OUTOFSYNC wrote: »

No seperate hot and cold taps

Mixer tap on sink tho

Ok. I'm assuming you mean the sink/basin in the bathroom?

OUTOFSYNC

Separate hot and cold taps on bath

Mixer tap on wash hand basin

No cold water in either or in cistern

Hot water works

slimjimmc

A trick sometimes used to clear a stubborn airlock is to back-flush by connecting a hose to the mains pressure cold tap in the kitchen and to one of the affected taps (keep all others closed). The mains pressure might push out any blockage (air or something). I'd first make sure to tie up the ball-cock and partially empty the storage tank to avoid overfilling it.

Dtp1979

OUTOFSYNC wrote: »

Separate hot and cold taps on bath

Mixer tap on wash hand basin

No cold water in either or in cistern

Hot water works

Turn off all taps. Tie up ballcock on toilet. On the basin open the cold. Place your hand over the spout and turn mixer to central hot/cold mix. Hold for 30 seconds, longer on second attempt. When you let go after 30, turn to cold and see if water flows.