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Ray 3 months, 3 weeks ago.
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See the blog post – http://www.loveyourrv.com/bad-smell-coming-rv-sink/
I show you a possible cause for foul odors coming from the RV sink or underneath in the cabinet area.
A plumbing fixture called an Anti-Siphon Trap Vent Device (ASTVD) may be to blame. It’s a type of check valve letting fresh air in to aid the drain while keeping the waste tank air from escaping.
This one-way valve has a small spring and rubber disc inside that sometimes fail which in turn allows waste tank odors to escape into the RVs living area.
The ASTVD part is very inexpensive and easy to change. See my blog post on Love Your RV! for links.
In the future, I plan to upgrade the sink plumbing by installing what is called a HepvO waterless P-tap, stay tuned for that in an upcoming video.
RVHH Chief Cook and Bottle Washer - LoveYourRV.com
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