daiking Posted March 4, 2021 Share Posted March 4, 2021 (edited) This joint has given way after 6 years, between the trap and the black waste pipe. Whilst trying to refit the trap it seems that the trap does not grip on the black pipe even when fully tight. The black pipe has longitudinal movement. This could be new (loose clip on outside wall?) and this movement has allowed it to escape from the trap. The black pipe goes straight under the length of the bath through the wall and has a right angle joint outside where it exits. Is there some sort of mix up between this pipe and trap meaning that it’s not gripping? It fits inside the compression fitting but just doesn’t tighten up. Edited March 4, 2021 by daiking Link to comment Share on other sites More sharing options...
joe90 Posted March 4, 2021 Share Posted March 4, 2021 Sounds like that black pipe is the wrong size (too small diameter) or the rubber gland is not the right one. Can you measure the outside diameter of that black pipe?, is it solvent weld , push fit or compression? 1 Link to comment Share on other sites More sharing options...
riv990 Posted March 4, 2021 Share Posted March 4, 2021 Check that the black rubber taper ring hasnt got pushed inwards , remove nut and put on pipe , put on thrust washer if supplied then tapered rubber on , thin edge to trap then assemble trap to bath with a smear of silicone on bath threads and tighten up then fit clip outside to hold pipe still 1 Link to comment Share on other sites More sharing options...
daiking Posted March 4, 2021 Author Share Posted March 4, 2021 18 minutes ago, joe90 said: Sounds like that black pipe is the wrong size (too small diameter) or the rubber gland is not the right one. Can you measure the outside diameter of that black pipe?, is it solvent weld , push fit or compression? I’m not sure, I didn’t do it. I suspect the waste is solvent weld though. 8 minutes ago, riv990 said: Check that the black rubber taper ring hasnt got pushed inwards , remove nut and put on pipe , put on thrust washer if supplied then tapered rubber on , thin edge to trap then assemble trap to bath with a smear of silicone on bath threads and tighten up then fit clip outside to hold pipe still I’ll fish out the black ring to have a look Link to comment Share on other sites More sharing options...
daiking Posted March 4, 2021 Author Share Posted March 4, 2021 26 minutes ago, riv990 said: Check that the black rubber taper ring hasnt got pushed inwards , remove nut and put on pipe , put on thrust washer if supplied then tapered rubber on , thin edge to trap then assemble trap to bath with a smear of silicone on bath threads and tighten up then fit clip outside to hold pipe still Thanks. It had disappeared up the pipe. Seems to be holding now. I couldn’t see it properly and those corners on the bath support are lethal... 1 Link to comment Share on other sites More sharing options...
Gav_P Posted March 4, 2021 Share Posted March 4, 2021 Christ! nice simple job made a nightmare by that bath panel. I guess you needed arms like mr tickle to get in there! 1 Link to comment Share on other sites More sharing options...
daiking Posted March 4, 2021 Author Share Posted March 4, 2021 10 minutes ago, Gav_P said: Christ! nice simple job made a nightmare by that bath panel. I guess you needed arms like mr tickle to get in there! Yeah, I’m more Mr Clumsy. 1 Link to comment Share on other sites More sharing options...
Gav_P Posted March 4, 2021 Share Posted March 4, 2021 That last pic reminds of the eBay puzzle advert that’s on TV at the moment, can you just buy something that fits the hole you have made? Link to comment Share on other sites More sharing options...
TonyT Posted March 4, 2021 Share Posted March 4, 2021 I’ve never seen black waste pipe used before! we only ever use solvent weld and only ever seen it in white. is it common in England? Link to comment Share on other sites More sharing options...
Gav_P Posted March 4, 2021 Share Posted March 4, 2021 39 minutes ago, TonyT said: I’ve never seen black waste pipe used before! we only ever use solvent weld and only ever seen it in white. is it common in England? Yup... used to make the outdoor plumbing more subtle and classy... 1 Link to comment Share on other sites More sharing options...
joe90 Posted March 5, 2021 Share Posted March 5, 2021 8 hours ago, TonyT said: I’ve never seen black waste pipe used before! Not everyone stocks it, I believe plumbcentre do. Link to comment Share on other sites More sharing options...
TonyT Posted March 5, 2021 Share Posted March 5, 2021 I never even thought About external pipework ! Link to comment Share on other sites More sharing options...
Bitpipe Posted March 5, 2021 Share Posted March 5, 2021 13 hours ago, daiking said: Thanks. It had disappeared up the pipe. Seems to be holding now. I couldn’t see it properly and those corners on the bath support are lethal... Reminds me of playing Tetris in the student bar - always hated that shape... Link to comment Share on other sites More sharing options...
daiking Posted March 5, 2021 Author Share Posted March 5, 2021 56 minutes ago, Bitpipe said: Reminds me of playing Tetris in the student bar - always hated that shape... When I first made the hole, it was more of a squat cross -II- shape. Didn’t have a multi tool and was too tricky at the time to use a jigsaw so close to the bath so had to chain drill, a lot, of holes. Had to add the top left part later for something. Might tidy it all up one day. Stupid idea of the wife who wanted the tile bath panel and I didn’t know how best to do it at the time. I still don’t know how best to do it but at least I now know one way not to do it. Link to comment Share on other sites More sharing options...
daiking Posted March 5, 2021 Author Share Posted March 5, 2021 1 hour ago, TonyT said: I never even thought About external pipework ! Geoff the plumber must have been a goth as he only used black wastes. Link to comment Share on other sites More sharing options...
Bitpipe Posted March 5, 2021 Share Posted March 5, 2021 2 minutes ago, daiking said: I still don’t know how best to do it but at least I now know one way not to do it. If build hub had a motto.... 2 3 Link to comment Share on other sites More sharing options...
riv990 Posted March 7, 2021 Share Posted March 7, 2021 The picture of the back of the flats , real workman ship cast iron stacks with copper wastes would cost a fortune now Link to comment Share on other sites More sharing options...
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