Re: Water pipes go BANG!

Thanks for this - however it's ALL taps, so the shower, bath taps, sink taps, kitchen taps and washing machine all do this (therefore washers unlikely to be the culprit, also all taps are brand new too). So hopefully I would't need 9 of them!? If I put these arrestors in the H & C pipes under the bath - therefore pretty close to bath/sink/shower, would that sort out the kitchen (probably about 6m of pipework away)?

Thanks Dave

You only need one arrestor. In systems were there is no water meter, expansion is taken up down the mains pipe. Some water meters have check valves in them preventing this occurring. So, you have to install expansion provision yourself. They are small spheres.

In some cases when water meters have been installed the extra pressure inside the installation can blow combi gaskets, shower joints and tap joints. Some combi's come with arrestors already fitted, others have provision.

Is the system a mains pressure system on H&C? What types of taps do you have? 1/4 turn efforts?

Surely 1 arrestor for hot and one for cold? (I don't have a meter.)

Yes, fully mains pressure; yes, taps are the 1/4 turn ceramic disc types (which no doubt exacerbates the problem I'll admit; although it also happens with the shower mixer which presumably has conventional rubber seals inside).

Thanks David

The 1/4 turn don't help at all. Yes. I would put one sock arrestor on the hot and one on the cold. They are about £10 each.

I think I'd go for a generic filter, rather than just a sock arrestor.