Hi,
Just after a 2nd opinion here:
This is my main water supply where it enters the house.
I'm wondering where this blue/green corrosion has come from. Damn sure the joints did not weep when I put them in. There is no sign of corrosion drizzling down the pipe so I don't think they have leaked, ever.
I did get a skim coat of plaster put on this room after fitting that lot and some plaster did get on the joints - mostly wiped off. It's possible that maybe a trace of plaster has caused this? Maybe condensation, being a kitchen?
The actual question I am asking myself is: Am I happy leaving that valve in place and remaking the top joint with new copper. I'd prefer not to disturb the lower part as I'm scared the solive may not reseal well on a new valve.
Valve itself seems fine - been operated regularly (holidays etc).
I did this about 5 years ago including the blue MDPE pipe. Above the
22mm full bore valve is a pressure reduction valve (drops the 7-8 bar supply down to a more reasonable 5 bar).Above that is a bit of lashed up plastic.
I am replacing the plastic with a proper run in 22mm copper (to keep the flow good) next week. The pressure valve will be relocated to the far end where it will be more accessible. The rising main and the main valve will remain here but will end up with a kitchen unit in front.
Whilst access will be maintained for operating the valve, plumbing will be less fun. Hence wanting to be very very sure all is well...
Any opinions?
Cheers
Tim