40mm waste pipe into 110mm branch

Mar 25, 2024 Last reply: 2 years ago 12 Replies

I need to connect a 1.5m length of 40mm plastic pipe using a rubber boss connector into the 60mm opening on a 110mm branch, like this one:



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All fine, but how do you neatly secure the pipe to the wall? I can't seem to find anything other than standard 40mm clips, and even if I could it'd stand an extra 5cm from the wall. Or maybe just one clip in the middle, and rely on the bendiness of the pipe?


Oops - 75cm, not 1.5m

You put a block between the wall and the 40mm pipe and stand off the 40mm pipe, or use a plastic offset tapered adapter at the pipe join,

Those adapters do exist.

Trivial to put a block between the base of the clips and the wall.

Even a lenght of timber parallel to the pipe over its full lenght.

That would look an awful bodge. .

So bending won't work, but a 75cm strip oif wood between the wall and the pipe would work fine.

Google Mungsen Ring

Mungsen Ring back-plate screwed to wall, M10 studding between backplate and ring

This idea but for 40mm and in stainless/brass/cast iron

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I'd use a couple of 135 elbows to create a neat dogleg to the 40mm pipe and use standard 40mm wall-mounted pipe-clips.

At least that is what I've done a couple of times.

Create a "set" in the pipe with a pair of shallow bends to step it out to the boss at the end of the 40mm pipe run.

Thanks for the replies - I'll go with this solution, seems neatest,

Would that be heating/bending the pipe, or using the 135 connectors?

Assuming solvent weld, then 135 connectors would be easier and neater I suspect.

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