Hi boiler pressure rising slowly never going back..

Mateusz1983 · 5 Aug 2020

Done test 45min ch ..no pressure going up much just half barr.. looks good like only change of valve..just swap of valve or bigger job for plumber ..

Gasguru · 5 Aug 2020

You can just change the valve but be aware that if you decide to disconnect the hose there's always a chance the double check valve will fail (due to heat and system water contamination) and the hose will be at system pressure...ie. you'll get wet. Of course it would be sensible to cap it too.
A proper loop has the double check valve on the mains side and a valve on both the mains and system side.

Madrab · 5 Aug 2020

A proper Part L loop would normally be supplied with caps too. They are screwed onto the end of each valve so if they did start to pass then the caps should hold.

Mateusz1983 · 5 Aug 2020

Thank you people

decided to buy new hose with two valves and caps.. 10 pound and going to get someone to fit it for me ..how much should be? Hopefully less than 100...

thank you all for help can't believe it was only this...1 bar stable after shower...ch... maybe moves by half barr.. and going bacto normal.. hopefully going to be fine till next year cos planning to fit new boiler next year.. thank you guys

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Hi boiler pressure rising slowly never going back..

Mateusz1983

Gasguru

Madrab

Mateusz1983

DIYnot Local

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