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If a modern CU with RCD protection is in place, is bonding still required?

Ok, thanks. I think I'm getting the picture now.

Thanks. Given that the earth cable that disappears into the wall is attached to Pipe B, then I do need to re-establish the connection between A and B.

Good question. I had the floorboards up recently and I didn't see any evidence of blue pipe at the base of the incoming main. However yes, it could well have been replaced outside before we moved here.

No blue plastic pipe in the house.

Thanks for the replies. I'm obviously not making myself clear, and unfortunately the only picture I have doesn't show the full story. I'll try to describe the set up but if that proves to be no good I'll post the photo anyhow. The incoming copper main ( pipe A) rises from the stopcock to a...

Afternoon all How should copper pipe bonding be done? I have a bonding cable on the mains cold water pipe just above the stopcock, but there was also a cable strapped between that cold pipe and the pipe next to it, which is now disconnected. I can't reattach that second bond because I've fitted...

They’re hidden by shower panels now, but pretty sure these were black. I know they create black dust when you drill into them.

Another vote for an SDS drill with a chisel attachment. I recently chased out a block internal wall for shower pipework ( wish I’d battened and boarded instead, but that’s another story). I started with the bright idea of cutting the edges of the chase with a mini grinder then hacking out by...

Many thanks for that. Since I wrote my first post, my daughter has asked the decorator who will be doing her hall, stairs and landing if he can fix it, and he’s said yes. I don’t know the chap, but I’ll be impressed if he does the job as thoroughly as you’ve suggested it should be done.

Afternoon all. This might possibly come under "decorating", but I'll try here first. Attached is a photo of the plaster coving on my daughter's landing ceiling. To the left of the crack about 600mm of coving is loose, on the right of the crack its still solidly fixed to the wall, and I'm just...

Pretty sure there’s no condensation at present but I’ll check, thanks.

Yes, or I could leave a scrunched up sheet of kitchen roll down there for a day or two. Pretty obvious really, I guess.

Evening all Just wondering whether members of the forum have in their plumbing portfolios any tricks to confirm whether there are leaks in confined spaces, when other methods of investigation don't provide certainty. I recently fitted a vanity unit with sink in our bathroom. I used...

PTFE for me. It’s about the only situation where I use it nowadays.

I've just replaced an electric shower with a thermostatic bar mixer working off a combi boiler. Our water pressure is pretty good, but the electric shower was no better than adequate in summer and pi** poor in winter. The pressure/flow from this thermostatic shower is absolutely tremendous: you...

The breaker is 32amp, the shower was just 8.5kw so barely adequate, particularly in winter. Unlikely that there will be any later additions to the circuit, but thanks for taking the trouble to post the info anyhow.

I’m only continuing to blather on about this because it might be useful to someone else. I bought a new back box and managed to fit it without disintegration, so the shower circuit now terminates in a socket in the loft. It’s very unlikely that I’ll ever use it, so I intend to leave the MCB for...

I'll be more careful with the second one, although having just checked the reviews on Screwfix ( which is something I usually do BEFORE buying) the last reviewer had exactly the same problem.

Just confirming that I’ve had a good look at the cables again and the neutral wire is NOT much bigger than the live or earth. No idea where I got that notion from. I’ve screwed a 47mm back box to the gable wall, fed the cable into the box and connected the wires to the socket. Unfortunately I...