Forum Title: Siphoning trap.... Why?!?
So after two years of use, no problems, the telltale smell arises from the sinks. The master sinks are 20 ft from the stack, hence the AAV, with a tub halfway to the stack on the same line of 2" sch40, proper slope. Snaked the stack and it was clear. Replaced the AAV, despite old one being fine. Still the smell. Any ideas?
Category: Plumber Post By: IDA HOPKINS (Atlantic City, NJ), 04/09/2016

aav is most likely no good aav to low drain to far from vent to many slip joints [only allowed 1] not enough hangers no fall you used a glue trap instead of a slip joint need a cleanout.

- ANDY FITZGERALD (Chicopee, MA), 09/04/2017

The accordion plastic POS tubing itself is enough to cause odor problems due to waste collecting in those nice pockets.

- IDA HOPKINS (Oxnard, CA), 09/10/2017

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