Hello all:
I have a vent stack that stinks to the high heavens. I have checked pitch and piping size in every place that is accessible and it all seems appropriate. I have heard of this problem before and have seen past postings about a gizmo that gets installed in the attic to help with this problem. Anyone know about this?
Yours in smelliness,
Jack
To prevent moisture buildup and improve performance, install a continuous air barrier—such as drywall or specialized membranes—under tongue-and-groove boards or other interior wall paneling.
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Replies
I assume that the stack is thruogh the roof, and your stinkieness is from down drafting of some sort. I have mostly seen this type of problems on flat commercial roofs. We add another section of pipe over the short stack to get the stink a little higher into the air/wind. We found that this is just a seasonal thing, so the pipe we use is oversized to fit the OD of the original stack, and we remove it a month or so later. The problem is gennerallygone by then.
Maybe you can add a little height to a stack on a pitched roof and accomplish the same thing.
The device you are refering to is an air addmittance valve. You need to check local plumbing codes to see where they can or can not be used.
Dave
Are you on city sewers or a septic tank? I've heard that there are things that can cause this with septics, but I've never had one myself.
-- J.S.
Eat more vegetables?
AAV - Air Admittance Valve.
But make sure it is code approved for your area.
Also make sure it is OK to use in this particular application.
If the answer is yes to both of these questions it should solve the problem. Studor vent is my preferred brand.
I've looked air admittance valves and it seems that they can not be installed directly on the stack, but rather in a vented box. If I get a yes to both of the questions that you stated, do you think I can install this on the stack outdoors? Thanks.