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- 23 Jan 2017
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I need to possibly replace an elbow joint under the floor as it is leaking quite badly. This is due to a cowboy heating engineer install less than a year ago - I'd reported the elbow as dripping previously but it had later stopped - not sure if the engineer just tightened it, but I need to replace it as I don't want to go under the floor again if it has completely failed. Going under the floor and accessing the pipe is a bit of a mission.
The leak was causing boiler pressure to drop from 1.5 bar to 0 within an hour - less if the heating was on - it was dribbling out at quite a rate. Even though it was leaking fast, I assume the system is far from empty and expect water to gush out if I remove the elbow...
I've closed the radiator valves but I don't think that will prevent water pouring out.
I'd rather avoid draining the whole system and refilling. Will it be possible to freeze the pipe to isolate the elbow?
Before I found the leak I repressurised the boiler several times, so each time it would have leaked a few litres of water, so I expect I have to top up the inhibitor at least.
(Not sure if I should need to mop up the large puddle of water under the floor or if I should just let it dry by itself.)
Anyway, do I need to isolate the pipe or will I get away with it?
The leak was causing boiler pressure to drop from 1.5 bar to 0 within an hour - less if the heating was on - it was dribbling out at quite a rate. Even though it was leaking fast, I assume the system is far from empty and expect water to gush out if I remove the elbow...
I've closed the radiator valves but I don't think that will prevent water pouring out.
I'd rather avoid draining the whole system and refilling. Will it be possible to freeze the pipe to isolate the elbow?
Before I found the leak I repressurised the boiler several times, so each time it would have leaked a few litres of water, so I expect I have to top up the inhibitor at least.
(Not sure if I should need to mop up the large puddle of water under the floor or if I should just let it dry by itself.)
Anyway, do I need to isolate the pipe or will I get away with it?