Hello all
This is my first post on this forum so go easy on me.......
I'm building (literally, on my own pretty much) a small 3 bed storey-and-a-half (i.e. room in the roof) traditional style house on the west coast of Scotland (I know, different regs. ) and am trying to sort out a way of plumbing in an upstairs bathroom. My problem is this; the design is such that the w.c. is on an internal wall, at a right angle and about 2 meters from the gable end where I intend to put a vented external stack. The pan connector will come from the back of the pan, turn 90 degrees into the branch and exit through the gable to tee into the stack. The bath and basin will ideally tee into the branch but because of the joist runs, the branch will be above the floor level (boxed in). The bath lies along the gable with it's end on the same wall as the w.c. - i.e. the soil branch runs under one end of the bath - and the drain is central in the bath. I don't have enough height to tee the bath drain into the top of the 110mm pipe and get a fall. Any suggestions as to how to connect the bath drain to the horizontal branch? I've read somewhere that a bath trap must be min. 50mm deep if it goes to a soil pipe. Anyone know if this is true? I could if absolutely necessary go out through the gable end separately for the 40mm bath drain and tee it into the stack externally but that's what I'm trying to avoid. Is a non return valve a good/bad idea or is it not allowed?
Also, there will be a ground floor shower room with toilet. This toilet will be down stream of the vented stack and I'd like to have either no vent pipe or an internal one with Durgo in the loft space. Again, good or bad idea?
Thanks
This is my first post on this forum so go easy on me.......
I'm building (literally, on my own pretty much) a small 3 bed storey-and-a-half (i.e. room in the roof) traditional style house on the west coast of Scotland (I know, different regs. ) and am trying to sort out a way of plumbing in an upstairs bathroom. My problem is this; the design is such that the w.c. is on an internal wall, at a right angle and about 2 meters from the gable end where I intend to put a vented external stack. The pan connector will come from the back of the pan, turn 90 degrees into the branch and exit through the gable to tee into the stack. The bath and basin will ideally tee into the branch but because of the joist runs, the branch will be above the floor level (boxed in). The bath lies along the gable with it's end on the same wall as the w.c. - i.e. the soil branch runs under one end of the bath - and the drain is central in the bath. I don't have enough height to tee the bath drain into the top of the 110mm pipe and get a fall. Any suggestions as to how to connect the bath drain to the horizontal branch? I've read somewhere that a bath trap must be min. 50mm deep if it goes to a soil pipe. Anyone know if this is true? I could if absolutely necessary go out through the gable end separately for the 40mm bath drain and tee it into the stack externally but that's what I'm trying to avoid. Is a non return valve a good/bad idea or is it not allowed?
Also, there will be a ground floor shower room with toilet. This toilet will be down stream of the vented stack and I'd like to have either no vent pipe or an internal one with Durgo in the loft space. Again, good or bad idea?
Thanks
