Expansion Vessel Dripping - temporary fix?
Discussion
Chucklehead said:
The expansion vessel here has developed a drip.. coming out of a small (manufactured) hole circled. I only realised something was happening when it started dripping into the living room below.
Is there something I can do to stop this tonight until I get someone out to look at it tomorrow?
Some sort of container to catch the drip?Is there something I can do to stop this tonight until I get someone out to look at it tomorrow?
We appear to have the same vessel! (only replaced last week!) The bolts on the bottom make me think this may be serviceable, my old one was welded shut! My reason for posting is to advise you fit an isolation valve when getting this fixed, that way you don't need to drain the tank for any future repairs.
finlo said:
Handy but no doubt frowned upon as it could be inadvertently left closed!
Quite the opposite - generally held in high regard and an advised fitting by good installers. Not only do they ease servicing (testing and recharging without pressure release from the main system in particular) but also serve to allow air from dead legs to be released so as to minimise the risk of legionella.Note that it is no ordinary isolation valve - its built-in locking mechanism prevents inadvertent operation.
Unfortunately my setup is a bit of a faff, and he's going to have to remove most of the pipework underneath to be able to remove the tank. There's not a lot of space above either, so it needs to be a like for like replacement.
As it's a bit undersized (28l Vs 24l), I suggested taking it straight up through the ceiling and into the loft and fitting a bigger unit (today!), but that's probably also too much faff.
As it's a bit undersized (28l Vs 24l), I suggested taking it straight up through the ceiling and into the loft and fitting a bigger unit (today!), but that's probably also too much faff.
Hmm, how big is you tank? Mine is 300l and a 24l expansion vessel is correct. Is the vessel tight against the ceiling or something? I can't see what is so hard TBH, drain system, cut the long pipe you have, fit the isolation valve, reconnect tank.
Edited as can see your tank is 250l, a 24l tank is 100% fine for that.
Edited as can see your tank is 250l, a 24l tank is 100% fine for that.
Does look tight in there, personally I'd tell them to cut the pipe below the old vessel, fit the valve then pipe up to the loft & fit a 24l. I honestly would fit the valve though, cost less than £20 and will save time & money in the future. If you need to pump it up you can't do that now. I think your old vessel is the correct size, check an online size chart. If it is then you could swap like for like and still get the valve in there...but you would still have to remove it if you ever need to pump it up, but at least you could then just drain the vessel!!
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