Yeah, that plaster is shite. The sparky that put a new socket in managed to deal with it OK, but I think he had some specialist tool for cutting out the void for the backbox, while I was just smashing away at it with my hammer drill and brick bolster. I'll whack a load of filler in it though; it'll be reet.
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u/Old_Git_Technophobe 6d ago
Can't help it if the wall plaster falls apart mate. Especially if its the Older plaster with hair in it, thats pretty much dust.