water leak

[fishnchips]

Got called out this morning to a leak. When i got to the job i was told the water was coming through where the smoke/heat detector was fitted on the ceiling. They had a bucket with a little bit of water in it. There was no water dripping through when i arrived. Went up stairs where there is a bathroom, thinking there was a leaking waste i checked all wastes, no sign of leaking. It seems to leak only when the cold tap on the bath is turned on, checked all visible and touchable pipework - no signs of leaking - so strange! It is an old property, i feel theres an old joint and when the pressure in the pipework is disturbed it then leaks and when the pressure builds up again it seals??? I'm scratching my head Their maintenance guys going to have a look tomorrow as where it's leaking was too awkward to get to on a sunday!

Can anyone shed any light, cheers

 

[AWheating]

lift floor, run tap and look for water

 

[fuzzy]

is it running down the back of the tap and through the tap hole? ive seen that before now

 

[Gray0689]

Got called out this morning to a leak. When i got to the job i was told the water was coming through where the smoke/heat detector was fitted on the ceiling. They had a bucket with a little bit of water in it. There was no water dripping through when i arrived. Went up stairs where there is a bathroom, thinking there was a leaking waste i checked all wastes, no sign of leaking. It seems to leak only when the cold tap on the bath is turned on, checked all visible and touchable pipework - no signs of leaking - so strange! It is an old property, i feel theres an old joint and when the pressure in the pipework is disturbed it then leaks and when the pressure builds up again it seals??? I'm scratching my head Their maintenance guys going to have a look tomorrow as where it's leaking was too awkward to get to on a sunday!

Can anyone shed any light, cheers

I saw a hep fitting once on a bath when water run it leaked but when shut off there was enough back pressure to push slightly back in fitting to stop leak

 

[Irish]

Could be like fuzzy says or if it's a shower in a bath silicone joints round the bath and have seen going through from round the seal of the overflow

 

[gasmarc]

the list of things is endless, I had similar last week for an old customer that i did work for years ago, I did not remember the job as the house had been totally renovated, well there was a bucket under the light fitting with a slow drip and upstair had a mega flow and a boiler in the loft conversion, the owner said the leak was coming from under the very expensive oak flooring at the door treshold. I told the customer I would not be prepared to take the oak flooring up and if push came to shove i would take part of the ceiling down, well after 10 minutes I found a leak on the filling loop even though it was switch off ,it was leaking from the centre of the isolation valve. I supplied and fitted a new filling loop and the customer was delighted as major work had been avoided. Something I have sussed is never presume the water is leaking directly from above, the leak in this case was about 8 foot away from where it was coming through the ceiling

 

[fishnchips]

Cheers for the response folks, much appreciated! One of the lads was there today pulled up a bit more floor (to be honest the place is a s**t hole and i didnt want to hang around yesterday) where there was a pump and 3 port valve, the leak was coming from a gate valve and had been leaking for ages, so after all that yesterday it was on the heating...unbelievable Jeff!! Still doesn't make sense to me.