Hi, I need to add a shower to a downstairs bathroom. In the corner of the bathroom is a grey soil stack 1000 mm high. Do I need to increase the height of this stack to allow for the shower and if so how high do I need to go?
Also, the toilet and existing basin are connected to this stack, with the basin outlet connected at 150 mm and a blank socket in the stack underneath. Ideally I want to install a walk in shower as my elderly mother will use this bathroom, but how can I get the shower to drain at what would be below floor level in a concrete floor? Even the lower socket won't be low enough.
I am grateful for any help you can give