Good afternoon,
So basically my shower and bath are connected to the soil stack via the same piece of 40mm pipe, I know this isn't the way to do it but we didn't install it and the soil stack is hard to get to (that's another story).
Anyway when we empty the bath the dirty water appears in the shower (not nice), I've done a little bit of research I think I need either a Non return Valve or and Air admittance valve.
But I am not 100% sure Screw fix sell the NRV - the AAV seem harder to find.
My lame attempt at a drawing to explain..
View media item 94058
Screw Fix NRV
View media item 94056
Ventapipe 25 Air Admittance Valve with integral 1½" Multifit Tee
View media item 94057
If possible would someone be able to tell me which one I should be using?
Also where should I install the extra valve I think it should go on the 40mm pipe between the shower and bath?
Thanks in Advance
Ian...
So basically my shower and bath are connected to the soil stack via the same piece of 40mm pipe, I know this isn't the way to do it but we didn't install it and the soil stack is hard to get to (that's another story).
Anyway when we empty the bath the dirty water appears in the shower (not nice), I've done a little bit of research I think I need either a Non return Valve or and Air admittance valve.
But I am not 100% sure Screw fix sell the NRV - the AAV seem harder to find.
My lame attempt at a drawing to explain..
View media item 94058
Screw Fix NRV
View media item 94056
Ventapipe 25 Air Admittance Valve with integral 1½" Multifit Tee
View media item 94057
If possible would someone be able to tell me which one I should be using?
Also where should I install the extra valve I think it should go on the 40mm pipe between the shower and bath?
Thanks in Advance
Ian...