I have read the info contained within 'Yet another soil waste problem....' and have found it most useful for my own current project of adding a second upstairs toilet..
But I still have a couple of questions as to fesability before I start in ernest.. and they are.
1. Does the W/C soil pipe have to have an atmospheric vent (upstream of the W/C) or is it ok to just join into the existing vertical soil pipe that has a 'stench pipe top' ?
2. If I can fit a 5.5m long 4" dia W/C waste pipe, can I drop both a bath and a sink waste (40mm pipes) into it or must I run seperate pipe(s) all the way to the vertical soil pipe ?
But I still have a couple of questions as to fesability before I start in ernest.. and they are.
1. Does the W/C soil pipe have to have an atmospheric vent (upstream of the W/C) or is it ok to just join into the existing vertical soil pipe that has a 'stench pipe top' ?
2. If I can fit a 5.5m long 4" dia W/C waste pipe, can I drop both a bath and a sink waste (40mm pipes) into it or must I run seperate pipe(s) all the way to the vertical soil pipe ?
