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View the thread, titled "Water in cwst is warm." which is posted in Bathroom Advice on UK Plumbers Forums.
any showers on mains (cold)?
Made this mistake other week something tracking up the feed pipe
I'll try and explain the set up.
Town house.
Cupboard on top floor housing x2 cost and f and e tank. Cylinder in same cupboard.
Someone else has been out since and said the cwst needs putting in the loft.
There is a pump in the same cupboard. Not entirely sure how it's piped but the pump makes a noise if the toilet is flushed on the middle floor. No showers on mains.
Town house.
Cupboard on top floor housing x2 cost and f and e tank. Cylinder in same cupboard.
Someone else has been out since and said the cwst needs putting in the loft.
There is a pump in the same cupboard. Not entirely sure how it's piped but the pump makes a noise if the toilet is flushed on the middle floor. No showers on mains.
I'll try and explain the set up.
Town house.
Cupboard on top floor housing x2 cost and f and e tank. Cylinder in same cupboard.
Someone else has been out since and said the cwst needs putting in the loft.
There is a pump in the same cupboard. Not entirely sure how it's piped but the pump makes a noise if the toilet is flushed on the middle floor. No showers on mains.
Town house.
Cupboard on top floor housing x2 cost and f and e tank. Cylinder in same cupboard.
Someone else has been out since and said the cwst needs putting in the loft.
There is a pump in the same cupboard. Not entirely sure how it's piped but the pump makes a noise if the toilet is flushed on the middle floor. No showers on mains.
Seen it a few times usually with monobloc sink mixer somewhere.
Mains going through to the hot side because of a hole in the body of mixer letting it permanently go into hot cylinder and up to cwt, even while mixer isn't being used.
Found it to be happening on 2 brand new mixer tap jobs
Mains going through to the hot side because of a hole in the body of mixer letting it permanently go into hot cylinder and up to cwt, even while mixer isn't being used.
Found it to be happening on 2 brand new mixer tap jobs
Let's hope that they made the correct decision. Coil might be gone in the cylinder, but I know one job where a plumber replaced the cylinder, but problem was a mixer tap
R
REDSAW
make that two, £650 for the new cylinder (reatafast) i charged £65 to fix the actual problem which was the tap!!!!!
Bet the customer had mixed emotions! I enjoy it when I fix something that others missed.
R
REDSAW
just a bit!
he asked me to prepare a report (£80 charge obviously 😉) to send to them for a refund or partial one as they mis-diagnosed and overcharged for a cylinder.
I know one job where a plumber had been going to the overflowing cwt on 4 occasions and charging the elderly man each time. Plumber claimed it was the ballvalve.
I actually told the customer on the phone it could be his copper cylinder or a tap causing it.
When I looked at the job, all I did was shine a torch in the inside of cwt, onto the tank fitting outlet feed to hot cylinder. A haze of warm water could be seen.
A new monobloc kitchen mixer and a new deck mixer in the garage sink had been previously installed, so I guessed it was the monobloc and disconnected the hot pipe and water was passing out from mains side. So about 5 minutes for me on that one.
Last edited:
R
REDSAW
same as best answer,
shine torch in cwst and watch thermal haze.
turn iso's of at mixer or cap off one feed to it. re check cwst or leave for a day or two and confirm.
when customer knows they may save a few hundred there quite happy to test.
i bet theres a way of plugging the cold feed with a pipe and lifting it out of the tank to dee if it pours out!!
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