Hi, I need to connect a 40mm bath waste pipe to a 110 mm soil branch
pipe - the vertical oulet of the branch goes to an air admittance
valve and the other horizontal outlet connects to the horizontal (with
a fall) soil pipe. What is the best way to do this?
Offer up a strap boss to the soil pipe and mark the position of where
you want to the waste pipe to attach:
Use the appropriate sized hole saw to make the hole - get the size just
right, it's worth buying the correct saw:
Using a rubber adaptor:
...assemble the whole lot, using silicone to ensure a good seal between
boss and soil pipe.
Thank you for the suggestions. Are there any adaptors to replace the
socket plug in the soil branch that can accept a 40mm waste? I.e. so
the 40mm can attach directly with the soil branch. This would save me
adding extra 110m waste pipe to attach the strap on boss.
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