New Central Heating Pipes Leaking

[Castironproblems]

Hi all,

I'm looking for a second opinion and some thoughts from those with more experience of plumbing.

I've had some problems with pressure dropping after installation of new radiators which I thought was related to the system expansion. After installation of the new radiators I only then realised that I was over the maximum total system content of the built in system expansion.

I've now realised that my new pipework is leaking and my installer thinks that the pressure may have risen too high and caused the pipes to leak at the t junctions. That doesn't fill with me much faith on the plastic piping and brass Tee and I'm worried about the future after the initial leaks are fixed.

Do the leaks sound likely of too high pressure or more likely bad connections?

 

[denso13]

more likely bad connections?

Yes, plastic pipe and fittings can easily withstand the maximum expected pressure in a sealed system, if installed correctly.