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Post by DIYDafty on Mar 2, 2019 20:53:24 GMT
 I was about to celebrate new shower working when I did a final check on the waste pipe. At least its not under the tray! Its definitely leaking from the bottom of the 50 mm fitting. Would a bodge of silicone fix it? As you can see it goes into a wall and would be a lot of work for me to chop out and refit. I'd tested this with buckets of water before hand but I guess I just couldn't simulate the large flow from the new shower !
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Post by DIYDafty on Mar 2, 2019 21:02:13 GMT
Attached pic of the other side of that wall. You can see I made the same mistake on the fking soil stack boss ! That's why I call myself a fking Dafty !!  In the case of the stack boss, my mistake was not being able to tighten the boss hard enough - I should have got one with the screw to tighten that I could access. STill the silicone has stopped any leaks there but that pipe is vertical, bigger and probably slightly lower pressure (being closer to the vent). Anyway as you can see I've stuffed some silicone down there and am hoping for the best ! What are my chances ? And what to do if it doesn't work? (apart from cry) |
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Post by DIYDafty on Mar 2, 2019 21:10:08 GMT
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Post by clart on Mar 2, 2019 21:53:22 GMT
I would peel the silicone off and just "Butter" the connection with solvent cement, really work it in there, that will stop it.
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Post by battle1066 on Mar 2, 2019 22:04:37 GMT
I would peel the silicone off and just "Butter" the connection with solvent cement, really work it in there, that will stop it. I would do the same as Clart as I've found silicon fails in time due to shrinkage. |
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Post by tomplum on Mar 2, 2019 22:07:39 GMT
the gap filler is good, first do as clart says, use liberal amounts of cement solvent, if that fails, use gap filler, if that fails, cut it out and redo, sillycunt is not an option,  |
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Post by rocketmanbkk on Mar 3, 2019 9:50:30 GMT
Follow clarts advice
Do the pipe twisr?
Solvent weld it up
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Post by dickpuller on Mar 3, 2019 12:46:02 GMT
Did you take the waste pipe from the shower through the exterior wall & back in again to connect to the SVP?.......Seriously, did you do that??
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hmv4u
Full Member
Posts: 145
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Post by hmv4u on Mar 3, 2019 13:04:04 GMT
feel your pain , I had a leak on two internal soil stacks from rubber adapters where the 40 mm shower(bath on the other) waste pipe pushed into the soil stack,failed after 20+ years ,the first one ruined the dining room carpet because the water ran down the soil pipe and when it reached the concrete floor, spread out under the internal plaster box ,soaking into carpet until it was noticed - which was a while,fortunately it was an old carpet and we renewed it but checking the bath one that was leaking as well.  |
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Post by rocketmanbkk on Mar 3, 2019 14:44:36 GMT
Did you take the waste pipe from the shower through the exterior wall & back in again to connect to the SVP?.......Seriously, did you do that?? It looks like it |
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Post by DIYDafty on Mar 3, 2019 17:17:26 GMT
Did you take the waste pipe from the shower through the exterior wall & back in again to connect to the SVP?.......Seriously, did you do that?? It looks like it Well at least Dick didn't assume 100% ! No I didn't do that. That brick wall is internal although it is a cavity and used to be external. Shower is less than 4M pipe run away and is on opposite side to the stack. Ta for the help. I wasn't a memeber of the forum when I started planning the drain and pipe runs (got some pointers on donuts) so couldn't ask anyone but if I have fked up badly its par for the fking course. |
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Post by DIYDafty on Mar 5, 2019 21:40:32 GMT
Happy to report first test of the shower and all is now good. Thanks a lot to Clart and Tom for your tips.
You might be pleased to know that I'd already siliconed the gap before I got that advice so I thought I've got nothing to lose by testing it and sure enough the drip was still there. I removed the old silicone, then used meths to clean it up. Finally after waiting a day so it was totally dry, I used a baby syringe (no needle) and used that to squirt tons of the solvent paste in. Followed up with my finger pushing it in and smoothing it like butter on bread.
As a final thing, I probably didn't need to do but thought I'm only going to try once so I took some of the wife's white cotton thread and wrapped about 10-20 times into the gap mixed with lsx. Worst case I thought it couldn't hurt.
I'm still none the wiser as to whether I've done the drain pipe work all wrong but its a powerful shower and drains nicely out of the tray.
P.S. The silicone on the stack boss is still there and holding. Been there about 3 months now. Does that need changing too?
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Post by clart on Mar 5, 2019 23:29:32 GMT
Leave sleeping dogs lie I say Zzzzzzzzz
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