Hi there,
First post on here, although I have been using the excellent answers to others' questions on here for a while.
I am mid-way through major renovations to an 1890's upper maisonette conversion (my first property!) and am at the point where I am putting in the new soil pipe from the main bathroom and internal en-suite. Unfortunately, due to the layout and heights of the structural beams, the only way to run them is above floor level behind the studs. There is the original cast iron soil pipe coming through the external wall and connecting to the stack, but unfortunately on both accounts, with a slope of 18mm drop per metre as peR the regulations, the soil pipes end a significant amount (15+cm) higher than the soil pipe.
My question is: is it ok to have a short drop at an angle of between say 45-90 degrees at an appropriate point (more than likely pretty close to the original one) to drop down the level? My thinking being that the high gradient would over-ride the risk of solids becoming stuck?
Would it be easier/more appropriate to do away with the old upper section of the stack and the existing cast iron pipe and just create a new exit point at a higher point?
Sorry if this seems like a stupid question but I can see no other way, but likewise as the works will need to be signed off by building control it would be pointless to do something and then have to redo it!
Thanks,
Jamie
First post on here, although I have been using the excellent answers to others' questions on here for a while.
I am mid-way through major renovations to an 1890's upper maisonette conversion (my first property!) and am at the point where I am putting in the new soil pipe from the main bathroom and internal en-suite. Unfortunately, due to the layout and heights of the structural beams, the only way to run them is above floor level behind the studs. There is the original cast iron soil pipe coming through the external wall and connecting to the stack, but unfortunately on both accounts, with a slope of 18mm drop per metre as peR the regulations, the soil pipes end a significant amount (15+cm) higher than the soil pipe.
My question is: is it ok to have a short drop at an angle of between say 45-90 degrees at an appropriate point (more than likely pretty close to the original one) to drop down the level? My thinking being that the high gradient would over-ride the risk of solids becoming stuck?
Would it be easier/more appropriate to do away with the old upper section of the stack and the existing cast iron pipe and just create a new exit point at a higher point?
Sorry if this seems like a stupid question but I can see no other way, but likewise as the works will need to be signed off by building control it would be pointless to do something and then have to redo it!
Thanks,
Jamie
