hi al can you install a macerator and use an existing 40mm waste pipe serving the bathroom as adding a loo to the room and soil pipe is on back of house . there is a kichen on the floor above that also uses the same 40mm pipe would this be ok to do if I added an Air Admittance Valve to the high point of the 40mm pipe in kichen thanks
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by stevewah » Fri Feb 28, 2020 2:10 am 
