Stench pipe

[swampydrill]

I am looking at possibility of extending out the back of the house, extension would be right across the house, problem I have is the stench pipe is right in the middle of the back wall, is there a way around it. I am thinking of going out around 10ft on a single storey with a lean to roof, could I run the stench pipe in the roof void to the side of the house, then tie it into the drains. I have 2 toilets, 1 bath, 1 shower and 2 sinks tied into this pipe on the first floor level.

 

[noseall]

Is it the presence of the vertical part of the SVP that is the problem or the drains leading to it?

If it is the vertical bit, what is wrong with leaving it as it is?

 

[swampydrill]

The room at the back of the house is the kitchen so if I extended that, the pipe would run through the kitchen. The drain for the soil pipe goes off to the right, my thinking was that I could leave the top part, run the lower floor level through the lean too roof to the right hand side of the house as you look at it and then tie into the drain ?I thought I had attached an image but I have one in my folder of the back of the house.

 

[Hugh Jaleak]

Cant quite work out what you want to do, (your photo is sideways!), but if the plan is to run the soil horizontally then use one bend to take it down to the drain connection, I don't see it being a problem. The dry (vent) section you can pretty much route as you like, the regs only frown upon bends in the wet section.