I am converting half my garage into a downstairs toilet/utillity room. Does any one know if i can have a saniflo that will do both the toilet and washing machine. Or do i need 2 seperate units i.e. saniflow & sanivite? Can i use the same 32mm waste pipe for 2 units? The 32mm is horizontal about 5 meters to the soil stack. Also do I need planing permission for the conversion, the door will be fitted in to a non-supporting single skin brick wall?