Depressurise, you mean drain down the entire heating circuit?
High pitched sound that rises and falls for hours on end.
- Thread starter morty1
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so how do you do that in a vented system? I might have to wait a week for that unless its an easy task as the old boiler is being replaced next week and they'll flush the entire system before fitting the new boiler. I appreciate people trying to diagnose stuff over the internet can prove testing but damn this is weird. I've just spent the last 2 hrs up there and its as quiet as a graveyard
yes the cylinder(water)is a sealed system as we got rid of the huge gravity tank in the loft but didnt change the heating to sealed as alot of the pipework joints downstairs are 33yrs old and theres high probability when moving to a sealed system it would start blowing joints so we left the heating a vented system
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Depressurise it, just to rule it out.
So how do you do that? Shut of the cold feed at the cylinder and open the taps
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