I have discovered that the flexible connector from the WC pan to the soil pipe does not have all the "fins" pushed in and is weeping - that's easy to fix - but I'm wondering if I can address another issue at the same time while I have all the cabinetry off.
There does not appear to be any venting to the WC/basin wastes which causes the shower trap to pull and then smell of drains. The whole shower room is boxed in and tiled - the soil pipe is dificult to locate although it does drop down through the downstairs cloakroom (although not obviously directly below the shower room) I can't find any eveidence of any sort of vent in the soil pipework (not through the roof, not in the loft)
My question is whether the layout (not to scale - flexible from the pan is about 45cm) in the very rough drawing would work to create a vent stop the shower trap smells. The back face of the pan is against a cabinet with all pipework concealed.
The plan would be to use an extension connector to add a short length of soil pipe to the existing 2" or so sticking through the wall - that short length of pipe to have an AAV fitted in a boss strap - and then a new (shorter) flexible from the pan.
AAV would be this one FloPlast AF32W Air Admittance Valve - https://www.NoLinkingToThis/p/floplast-af32w-air-admittance-valve/42968
Does this seem realistic? I have seen a McAlpine soil pipe/pan connector with a boss for an AAV but the clearance around the spigot in the concealed pipework pan isn't big enough.
All guidance and advice appreciated.
There does not appear to be any venting to the WC/basin wastes which causes the shower trap to pull and then smell of drains. The whole shower room is boxed in and tiled - the soil pipe is dificult to locate although it does drop down through the downstairs cloakroom (although not obviously directly below the shower room) I can't find any eveidence of any sort of vent in the soil pipework (not through the roof, not in the loft)
My question is whether the layout (not to scale - flexible from the pan is about 45cm) in the very rough drawing would work to create a vent stop the shower trap smells. The back face of the pan is against a cabinet with all pipework concealed.
The plan would be to use an extension connector to add a short length of soil pipe to the existing 2" or so sticking through the wall - that short length of pipe to have an AAV fitted in a boss strap - and then a new (shorter) flexible from the pan.
AAV would be this one FloPlast AF32W Air Admittance Valve - https://www.NoLinkingToThis/p/floplast-af32w-air-admittance-valve/42968
Does this seem realistic? I have seen a McAlpine soil pipe/pan connector with a boss for an AAV but the clearance around the spigot in the concealed pipework pan isn't big enough.
All guidance and advice appreciated.
