Possible leak in heating system

Basq

Have a gas boiler which was leaking a number of weeks back (noticed pressure at zero so motorized valves in hotpress were leaking and replaced, along with a service on boiler).

I've topped up pressure to about 1 bar the last few weeks and noticed it dropping relatively slowly to about 0.5 bar over a week.

I topped it up to 1.5 bar this morning and it's just over 1 at the minute.

Metal pipe (condensate?) running outside boiler at back door seems to be constantly dripping, is that normal?

No obvious leaks anywhere that I can see otherwise (around pipes of rads, pipes running under boiler).

Next port of call is probably a pressure test, right? Should I get an RGI installer if it's potentially boiler related or a plumber will probably do?

Wearb

Basq wrote: »

Have a gas boiler which was leaking a number of weeks back (noticed pressure at zero so motorized valves in hotpress were leaking and replaced, along with a service on boiler).

I've topped up pressure to about 1 bar the last few weeks and noticed it dropping relatively slowly to about 0.5 bar over a week.

I topped it up to 1.5 bar this morning and it's just over 1 at the minute.

Metal pipe (condensate?) running outside boiler at back door seems to be constantly dripping, is that normal?

No obvious leaks anywhere that I can see otherwise (around pipes of rads, pipes running under boiler).

Next port of call is probably a pressure test, right? Should I get an RGI installer if it's potentially boiler related or a plumber will probably do?

Probably just need pressure vessel recharged with air or maybe replaced.

agusta

Do you have 2 pipes or one pipe outside the back door coming from the boiler .If the drip is coming from the copper metal pipe then this is your problem.you need a new"pressure relief valve".
A condensate pipe is for high efficiency boilers and cannot be metal

Basq

agusta wrote: »

Do you have 2 pipes or one pipe outside the back door coming from the boiler .If the drip is coming from the copper metal pipe then this is your problem.you need a new"pressure relief valve".
A condensate pipe is for high efficiency boilers and cannot be metal

Yeah, I've heard a condensate pipe as being plastic alright.

Yes, it's one copper pipe. Should this be dripping often? I think I always remember a drip from it to be honest.

agusta

there should be no drip from the copper pipe.This is where your losing water and pressure.
Either way you need a new pressure relief valve .Also the expansion vessel should be checked for the correct pressure

Basq

^ Gotcha.. I'll give the plumber a call tomorrow so. Thanks for the advice!



Lost about 50ml since 2pm out of it..