I would really appreciate if someone could advise.
I intend to install a downstairs toilet for my elderly mother, unfortunately it won't fit under the stairs so it will have to go in the back dining room. I intend to build it in a corner opposite the windows, this means I will have to run the soil pipe along the skirting party wall for about 2 metres then out through the external wall then into the soil stack about 2m away.
The problem being , will it be OK to drill a core hole ( probably 125mm) in the corner of an external brick wall , one side being the party wall and the other being the back external wall. Would there be any structural issues as both will probably be load bearing walls. I'm trying to keep the number of turns on the soil pipe to a minimum as it's gravity fed toilet.
Cheers
