Does this external soil pipe require mortar or some other filler material to seal the pipe?

[PipeDownSoldier]

Hi all,

I’ve recently had some builders make some adjustments to my soil pipe (moved it externally) and this is the result.

Does the pipe need some sort of sealant (mortar or silicone perhaps?) around the pipe?

Thanks

 

[ReganAndCarter]

Yes, needs some mortar to fill the gap and finish the job. It's unfinished at present. Mortar will also help stabilise the pipe, as well as stopping the elements from entering. Another consideration is keeping out vermin like rats and mice who would like to make a nice home in your wall cavity.

 

[PipeDownSoldier]

I thought as much - thank you.

Is this something I could easily do myself? If so, are there any ready-made mixtures I could buy to do this?

 

[Hot&Cold]

Wickes do 5kg 'ready mix mortar in a tub'just mix in water and use

 

[ReganAndCarter]

I would try a call to the builder and ask him to put some mortar in. Applying mortar is well within the scope of most builders, though plumbing and drainage is usually expecting a bit much of them. I'm sure he's got some sand and cement in the back of his Tranny.

 

[dilalio]

Nice little DIY job for the bank holiday weekend.
If you “know” your builder is going to resist then just crack on and get it done... if you have a good rapport with him, just tell him you’ll do it anyway... he’ll owe you one

 

[PipeDownSoldier]

Nice little DIY job for the bank holiday weekend.
If you “know” your builder is going to resist then just crack on and get it done... if you have a good rapport with him, just tell him you’ll do it anyway... he’ll owe you one

Indeed! I actually just went ahead and done it yesterday (attached picture). I think I’ve done an okay job although I’m not sure I filled it deep enough. I still have (restricted) access to the interior side of where the pipe is, so I’ll ask my builder to fill that in with expanding foam.

 

[dilalio]

Indeed! I actually just went ahead and done it yesterday (attached picture). I think I’ve done an okay job although I’m not sure I filled it deep enough. I still have (restricted) access to the interior side of where the pipe is, so I’ll ask my builder to fill that in with expanding foam.

Good job. Nowt wrong, just go over it with a wet sponge to clean up the residue dust

 

[John D v2.0]

I’ve recently had some builders make some adjustments to my soil pipe (moved it externally) and this is the result.

Does the pipe need some sort of sealant (mortar or silicone perhaps?) around the pipe?

Op, you might want to check with the builder whether the stack complies with regs, ask what happens to the turds when they hit the elbow

plumbing and drainage is usually expecting a bit much of them

Couldn't say better in this case - why is there an elbow inin soil stack?

 

[PipeDownSoldier]

Op, you might want to check with the builder whether the stack complies with regs, ask what happens to the turds when they hit the elbow


Couldn't say better in this case - why is there an elbow inin soil stack?

Good point. I asked the builder that question but he said it should be fine - but of course he would say that. The builder will be long gone before uncle Neville comes around for Xmas dinner and blows the pipe elbow wide open with a massive log.

I’ll raise it with him again.

As for why there is an elbow, the old soil stack ran internally but to free up worktop space for our kitchen renovation in the room below, the soil stack was rerouted externally.

 

[Newboy]

the old soil stack ran internally

So there are now 2 no. 90° bends in the wet section at the base of the stack?

 

[PipeDownSoldier]

So there are now 2 no. 90° bends in the wet section at the base of the stack?

That’s correct.

 

[John D v2.0]

That’s correct.

Maybe your builder needs a new job making those mazes for hamsters. This is basic stuff. Butt by the time it's blocked he will be gone. If he won't fix it then get him to send a proper plumber.

 

[Newboy]

That’s correct.

So the waste drops vertically from the first floor, hits a 90° elbow, if anything makes it round that bend, it then hits a second 90° bend. The base of the stack should be a long radius bend - anything else is an (inaccessible) blockage waiting to happen - whoever installed this needs to be taken out and shot.

Ask the installer about compliance with Building Regs - Part H

https://www.gov.uk/government/uploa...achment_data/file/442889/BR_PDF_AD_H_2015.pdf

 

[PipeDownSoldier]

So the waste drops vertically from the first floor, hits a 90° elbow, if anything makes it round that bend, it then hits a second 90° bend. The base of the stack should be a long radius bend - anything else is an (inaccessible) blockage waiting to happen - whoever installed this needs to be taken out and shot.

Ask the installer about compliance with Building Regs - Part H

https://www.gov.uk/government/uploa...achment_data/file/442889/BR_PDF_AD_H_2015.pdf

What about if I asked him to install a rodding access point in the vertical pipe from the first floor, just above the first elbow?