Recent content by john-diy!

Thanks again for you advice Hugh. The plumber is halfway through the tiling stage, but I will not use en-suite until the BCO has approved the solution to the cross flow/ potential blockage drainage issue. There must be someway of staggering the connection of both soil pipes in that space...

Thanks Hugh, yes I thought about knocking another hole above the same hole, in the wall too, to connect to soil stack, but I think it would need a structural engineer to assess the integrity of the wall. Alternatively perhaps a hole a meter or so earlier and on the other side of arch, you could...

Thanks Hugh, yes I thought about knocking another hole above the same hole, in the wall too, to connect to soil stack, but I think it would need a structural engineer to assess the integrity of the wall. Alternatively perhaps a hole a meter or so earlier and on the other side of arch, you could...

Thanks for your replies, I have attached another photo to original post. The soil pipe cannot go externally from the new en-suite or we would have done that, hence the only route is internal. We did ask the plumber to check the existing pipework first for feasibility, before proceeding to fit...

Plumber has fitted internal toilet soil pipes in the downstairs hall opposite each other into a Y connector, before entering the soil stack pipe. Now there is a risk of cross flow, but there is only one hole (above a lintel) for access to soil stack, so the soil pipes cannot be staggered into...