110mm Solvent Weld Reducers

29 Jun 2021
Reaction score
United Kingdom
Right next to my shower tray there is a 110 mm soil pipe and i need to feed-in the 40mm waste pipe. Being in a recess, once it is connected up it is virtually inaccessible without taking the tray back out again. :-/

My question relates to the best type of reducer to go with i.e. solvent weld or compression?

The only issue I can see with the solvent weld is that I will have to be absolutely bang on with my pipework when I put it all together, which is no mean task in a recess. It is only a very short run and so there will be no flex in the pipe at all. Obviously I will only get one chance doing this.

As for the compression joint, I can obviously have a number of goes at it as well as rotate things around a bit if required. The bit I am not sure about is whether it is a good idea to use such a joint where it will be virtually inaccessible once it is all put together!? Is it likely to loosen itself off over time and cause me problems?

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