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Author:
GoldenDaze (NV)
Do these fail gradually or all at once? Any chance they can be leaking gas for a long time? Is there anywhere in the U.S. (or world) that sells some type of a sewer gas alarm/detector? Thank you!
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Author:
Don411 (IN)
There is a rubber flapper inside that degrades over time until it fails to seal completely. How much of a gap it takes before you smell sewer gas depends on a lot of variables, but when you do you know it's time to replace the vent.
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Author:
GoldenDaze (NV)
Thank you immensely. I am hypersensitive to mold and chemicals and have "5" of these in my single-story SFH, no VTR that I can see.
After the fact, I am trying to find an alarm/detector to put in my home to warn me of future leaks.
Are these sold anywhere in the U.S./world?
Appreciate your help!
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Author:
Don411 (IN)
You should be able to get them at any home center with a decent plumbing dept. They just unscrew and replacement is super easy.
The pro plumbers aren't fans of these devices because they can fail, as you found out. Most would prefer a fresh air vent through the roof, but in some applications these make much more sense. Expect to pay about $20 per valve.
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Author:
GoldenDaze (NV)
Thank you but I've already replaced it. I am looking for a "detector/alarm" for sewer gas similar to the carbon monoxide/smoke alarms to alert me of any *future* leaks. I don't care if I have to order it/them from the EU. It appears I'm on a wild goose chase though.
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Author:
Don411 (IN)
Sewer gas contains hydrogen sulfide and methane, and you can find detectors for both of those gasses on Amazon. It would likely be cheaper to set a calendar reminder for 5 years from now to just change the AAV. They have a pretty long serviceable life.
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Author:
GoldenDaze (NV)
Not trying to argue at all but fwiw, this house is only 7 months "new" - nowhere near the 5 year mark...but I'm located in a desert climate. I believe there may have been a slow leak before the odor became unmistakable. I'm frugal on many things but not when it comes to my health. Greatly appreciate your time and feedback. Before I purchase 2 stand-alone detectors though, I'll do a little more research to see if another country might make an AIO unit.
Thanks again!
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Author:
sum (FL)
A new construction home with all AAVs and not even a single VTR?
Is that even legal?
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