I found an on-line site.. Bathroom add 30% etc. etc.
I'll try and find it again...
However I ended up buying a Worcester 30si and the fkin thing could heat a mansion!!!!!!!!!
Its push fit mate.. I think I understand... the soil pipe runs (virtually) horizontal just below where the waste comes out.
The only plumbing I've done before is...well actually I never have!!
I had a plumber in, but he was bloody useless, too busy getting stoned on the job instead of...
Evening...
Im installing (well trying to) a downstairs lav..
Now the sink waste is miles away from the upstairs waste and the only thing close is the soil piping.
Can you connect a 32mil waste to the soil pipe? Or do I have to create a maze around the soil pipe and connect to the waste...