Boxing in an Air Admittance Valve

[dirty harry]

Hi

Just had to fit a 1m high air admittance valve next to the toilet in a newly built shower/toilet room. However, it looks pretty ugly so I want to box it in with some MDF, but will that affect how it works?

Any advice is appreciated.

Cheers

 

[fatplumber]

make sure that you vent it.

 

[Richard C]

If you’re going to tile or plaster it, use plasterboard fixed to a timber frame rather than MDF; it’s far easier to cut, fit & it won’t warp.

Don’t know your particular pipe layout but, in reality, as long as you don’t box the valve into a totally confined, sealed space it won't affect the intermittent operation of the AAAV. Just ensure air can get in from somewhere, under the floorboards or from the stack riser itself if that's also boxed in.

 

[dirty harry]

Thanks for the tips guys.

 

[TicklyT]

When designing your boxing in, remember Sodd's law - 'The mean time between component failures is inversely proportional to the difficulty of access for maintenance.'

 

[Richard C]

When designing your boxing in, remember Sodd's law - 'The mean time between component failures is inversely proportional to the difficulty of access for maintenance.'

Maybe my previous post is misleading; I didn’t mean put the AAAV under the floorboards (where it could flood anyway) or in the stack riser, rather the availability of an air supply.

I should have mentioned it previously but access to an air admittance valve is actually a BR requirement so whatever you do that needs to be considered.