We are planning a new extension, we require a new soil pipe to run from the first floor shower room (Shower, basin and toilet) to a toilet room below (Toilet and basin) and then down through the new foundations and in a new waste pipe into a T in our existing external pipes.
I presume there is no problem linking the shower and basin waste pipes into the stack with S or P traps?
Do I need to run the soil stack right through the roof and put some sort of cap on it?
I presume there is no problem linking the shower and basin waste pipes into the stack with S or P traps?
Do I need to run the soil stack right through the roof and put some sort of cap on it?