I'm building a house and wish to have a toilet at the rear 1st floor level. Due to the ground height at the rear of the house being lower than the sewer at the front, I cannot simply drop a stack down at the rear of the house and so wish the pipe to go to the gable end wall, which is 14m from the toilet location.
I read a post on here saying max branch pipe distance is 6m (as does the attached diagram on the building regs document). In the Building Regs document H1 Table 2 it advises 15m max branch pipe for unvented soil stack discharge.
This is for a single toilet, basin & shower would feed into this branch. Is the quoted distance of 6m for an unvented branch, if I put a vent beside the toilet is it possible to achieve a longer length, i.e. similar to that quoted for soil stack discharge? or does anyone have any other suggestions? The only other feasible route would be to go into the down within the centre of the house and under the house to the front which I want to avoid incase of future issues.
I read a post on here saying max branch pipe distance is 6m (as does the attached diagram on the building regs document). In the Building Regs document H1 Table 2 it advises 15m max branch pipe for unvented soil stack discharge.
This is for a single toilet, basin & shower would feed into this branch. Is the quoted distance of 6m for an unvented branch, if I put a vent beside the toilet is it possible to achieve a longer length, i.e. similar to that quoted for soil stack discharge? or does anyone have any other suggestions? The only other feasible route would be to go into the down within the centre of the house and under the house to the front which I want to avoid incase of future issues.
