Hello,

Discovered moisture damage in the parquet floor. Pulled up the floor and parts of the gypsum wall - noticed that when flushing on the upper floor, it leaks around the pipe running in the wall. Waste pipe from the upper floor. Is this correctly installed/executed? Is it supposed to look like this? The dimensions of the pipes? How it is connected? Or is it just the coupling that is faulty - everything else looks okay? What do those of you with experience say?
 
  • Plastic pipes in a wall cavity with visible wooden framing and a metal bracket, part of a leak investigation related to a building's drainage system.
Rickard.
If it's leaking, it's obviously not right, but there's nothing wrong visible from the picture.
 
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Is it leaking from the muff?
It appears to be a sliding muff, so it might be slightly misaligned and not centered over the joint.
As far as I know, it is not approved to use the red underground pipes within the casting, usually only the gray ones are approved.
 
If it's a sliding coupling, it might not sit right over the pipe ends...

Protte
 
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prototypen prototypen said:
If it is a slip coupling, it might not be positioned right over the pipe ends.....

Protte
One usually centers...
But sure, it's not to the millimeter😊
 
The ground pipe sticking up is not light-resistant, but it doesn't matter in a wall. It also doesn't affect the tightness.
I also bet on the sliding sleeve hypothesis.
Take a crowbar and try to lift the sleeve but first lubricate it with a little dish soap on top. It might be wise to first buy a new sliding sleeve 110mm.
 
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Intet Intet said:
The ground pipe sticking up is not light-resistant, but that doesn't matter in a wall. It also does not affect the tightness.
I also bet on the sliding coupling hypothesis.
Take a crowbar and try to lift the coupling, but first lubricate with a little dish soap above it. It might be wise to first buy a new 110mm sliding coupling.
https://www.pipelife.se/nyheter/solblekta-roer---pipelife-reder-ut-begreppen.html
 
Rejäl said:
[link]
So good. Then everyone in the UK can breathe out😀
 
Rejäl said:
Is it leaking from the coupling?
It looks like a sliding coupling, so it might be slightly misaligned, meaning it is not centered over the joint.
As far as I know, it's not approved to use ground pipe, the red pipe in the casting, usually only the gray ones are approved.
That's right, I think it's leaking from the coupling. Can anyone else confirm that the red pipe is not approved in the casting? Does anyone know why this is the case? What are the consequences?
 
Rickard. Rickard. said:
If it's leaking then it's obviously not right, but you can't see anything wrong from the picture.
Someone said that the dimensions of the pipe or the type of pipe are not approved for the way it is used in the picture? Properly joined? What do you say about that? Does it look okay? Apart from the coupler maybe not being completely centered and leaking?
 
Rickard.
PP conduit pipes are cast through slabs all the time, and if it happens that it is not approved, the consequences are absolutely nothing, that is not the problem.

I can't tell if it is a double socket or a slide socket from the picture, but if you find any other markings on it, it might indicate that, a slide socket can move and should be clamped.
 
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W WilliamÅberg said:
That's correct, I think it's leaking from the coupling. Can anyone else confirm that the red pipe is not approved for embedding? Does anyone know why it is so, if that's the case? What are the consequences?
https://www.gelia.se/globalassets/gelia_sv/dokument/broschyr_info_gelia_pdf/rorlathund_1005.pdf

https://www.uponor.com/sv-se/vvs/produkter/inomhusavlopp

It's probably about them being able to withstand being embedded, but I don't think your problem is about the red pipe; just wanted to point out that it can cause issues if not. Before you touch the sliding coupling, you need to purchase a standard 110 coupling and a sliding coupling and a piece of pipe, because you can never just change the sliding coupling without cutting a piece of pipe so you can fit a new one.
 
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Rickard. Rickard. said:
PP pipes are cast through plates all the time and if it happens to be that it is not approved, the consequences are still absolutely nothing, that's not the problem.

I can't see if it's a double socket or a slip socket from the picture, but if you find any other markings on it, it might say, a slip socket can move and should be clamped in place.
But it's not done anymore, most pipe companies are quite careful to have approved pipes for casting...
But I agree with you that I don't think TS's problem is the red pipe but the socket...
 
Rejäl said:
you can never just replace the sliding collar without cutting off a piece of pipe so that you can fit a new one..
Oh yes! If the pipe goes up to the ceiling, TS can almost certainly bend out the pipe. Take off the old collar and put on the new one.
But sure. Having a plan B is never a bad idea.
 
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If you cannot see or determine which direction the bend in the ceiling/floor joist goes, it is not advisable to push or pull the pipe too much, as it may affect the bends that are not visible and these could be fixed and risk breaking.
 
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