Cast iron confusion

[lindisfern]

Although our house is Victorian the bathroom was fitted much later possibly 1950's. The cellar has had a damp patch along the outside
wall since before we moved in 20+ years ago, it always seemed to get worse in winter so we accepted it as just damp.
It started to get worse this year so I removed the wet plaster from the cellar wall and left the wall to dry out- I then noticed water was flowing through the stonework in the same area as the outside soil pipe. But the next day it was dry again.
To cut a long story short it only happens when the bath is used,not the shower which is over the bath or the hand basin or toilet yet all are connected to the same soil pipe WHY?(tried 2 buckets of water into the toilet did not do it but 2 buckets into the bath does). And the water appears almost immediately-well,by the time I get from the bathroom to cellar so does the water.

[danensis]

It is quite possible that the outlet pipe from the bath is leaking where it goes through the wall and the water is running down inside the wall.

[lindisfern]

That was my last thought, ran a plastic tube inside the pipe from
u bend to the opening into soil stack, it still did it but not so much then tought it could be backing up behind the tube so sealed rim still doing it.
Looks like it will have to be dig out to see whats going on.
thanks

[flowjoe]

Have a dig at the base of the soil vent pipe you will probably find the 90 degree bend (rest bend) or the clay pipe work prior to or after the bend will be leaking.

A rapid volume of water like a flush from a toilet wil only lose a little water fairly quickly into the sub-soil where as the steady flow of a shower or bath will lose water steadily which will then track through to the cellar.



Edited By flowjoe on 1130611323

[lindisfern]

Thanks for your comments.
after digging out the pipe we found that it had been shattered
when the electric co. used a mole to renew main cable.