I have a wc downstairs where the soil pipe is inaccessible. I now want to fit a wc upstairs, but need to connect to a drain. one way is to dig up a concrete yard and fit new one which I don't want to do. There is a open drain in yard which takes rain water and waste water from sink. Would it be o.k. to dig round this drain, remove the earthen trap and fit a 100m plastic soil pipe bend to the existing drain? and then extend this up the wall to new wc and vent.? Is this possible? SMUDJA.
