I want to add the Basin and Bath waste pipes to the soil pipe.
I know I can get an adaptor
http://www.screwfix.com/app/sfd/cat/pro.jsp?idI547&ts 401 to do this,
but can anyone tell me what size hole I need to cut in the soil pipe for the
In our previous property the Bath & Basin waste pipes went above the pipe
from the toilet, but
looking at all the houses where I live, they all have them below.
Does anyone know if it makes any difference please.