I went and had a chat with Marley. They have a corner branch that fits my needs, no problem with crossflow contamination etc. Marley were very helpful virtually told me how to do the job, so a good result , thanks for the inputs
I am looking to add 2 new toilets one from a garage conversion from the front of the house and one from a rear extension. I want to tee both into the existing soil stack using 110mm pipe. Is this possible and advisable, both runs will be about 3m long and will tee at main stack at 90 degrees of...