Ok - I built a downstairs toilet a few months back - using sani-split which is a saniflow type system - except better. Anyway - so far its been great. My issue relates to my possible error in ref to regulations, in the fact I did not seek advice beforehand. The existing soil stack, runs down the internal of the house, and is hence in the kitchn - board up - but accessible as waste pipes access it for the sink and washing machine. What I have done, is run 32mm pipe underneath several kitchen cudboards
- not visable at all but accessible - and it then into the soil pipe via a spare access point, and the other end, goes through a wall - underneath my stairs, and into the new toilet.
Am I right, in my concerns that this breaks some sort of building regulations?
Scott