pressure relief valve overflowing

[simonridout]

Hi, I am new to the forum, fairly competent at diy plumbing. Two years ago, I had a major extension build, which included changing to a pressurised hot water system. A PRV was installed, Reliance, I cannot identify the model. It has started overflowing, a persistent dribble, rather than a drip. I would be grateful for advice.

 

[Ch4 plumbing]

Unless it's a Megaflow you will need to employ a G3 qualified plumber to fix for you.

 

[Dotty]

Doesn't matter how competent you deem yourself, it's illegal for you to touch this under part G3 of the building regs which are enforceable by law.

You need to get a G3/unvented qualified plumber in.

 

[snowhead]

There are only 2 reasons why a PRV lets water past.

Someone with suitable training and experience would have no problem in identifying which and fully checking over the system to ensure it's safe.