My house was built in 1935. it has a downstairs outhouse toilet at the back attached to the house. This does not have a soil stake or any durgo valve. Does it need one?
I have an upstairs bathroom with the typical set up, soil stack to above the roof.
I am also looking to fit an ensuite, not same side of the house of the soil stack. Do I need to fit a separate soil stack for this one?
Thanks in advance. Hope it makes sense.
