I have a leak in my soil pipe where this enters the ground floor. I have uncovered the area by removing the concrete floor and have the following:-
The foundation is a solid concrete raft of some depth I'm told. The Soil pipe is clay with a plastic collar attached both cemented into the floor. Wrapped around the soil pipe are up to 6 water and heating pipes set in sand in the floor and going off in all directions around the house. The Soil pipe and Collar are right in the corner of the room against two solid walls the plastic Collar in effect touches the walls in two sides.
The collar around the plastic soil pipe where this joins the clay has no seal but a 1 cm gap all around where I assume a seal existed once. From what I can tell the base of the collar and the clay pipe are well cemented into the raft foundation and the leak looks to be from the top of the collar. If you pore water into the 1cm gap it slowly runs away.
The problem appears to occur only when the stack is blocked and it backs up and I noticed it when damp patches appeared over the pipe runs which were partially uncovered in one room - I am assuming the whole ground floor runs have been effected
Removing the old collar and replacing it is likely to be almost impossible without smashing the clay pipe
Is there are compound that I can pore into the 1cm gap to form a new seal it would have to be flexible but bond to the two pipes. Otherwise does anyone have any other suggestions on how to tackle the problem
Thanks in advance
The foundation is a solid concrete raft of some depth I'm told. The Soil pipe is clay with a plastic collar attached both cemented into the floor. Wrapped around the soil pipe are up to 6 water and heating pipes set in sand in the floor and going off in all directions around the house. The Soil pipe and Collar are right in the corner of the room against two solid walls the plastic Collar in effect touches the walls in two sides.
The collar around the plastic soil pipe where this joins the clay has no seal but a 1 cm gap all around where I assume a seal existed once. From what I can tell the base of the collar and the clay pipe are well cemented into the raft foundation and the leak looks to be from the top of the collar. If you pore water into the 1cm gap it slowly runs away.
The problem appears to occur only when the stack is blocked and it backs up and I noticed it when damp patches appeared over the pipe runs which were partially uncovered in one room - I am assuming the whole ground floor runs have been effected
Removing the old collar and replacing it is likely to be almost impossible without smashing the clay pipe
Is there are compound that I can pore into the 1cm gap to form a new seal it would have to be flexible but bond to the two pipes. Otherwise does anyone have any other suggestions on how to tackle the problem
Thanks in advance
