hi everyone,
was under bathroom sink and saw this.
is this a type of studor vent
Yes. Also know as air admittance valve.
That be it! They just screw off and Home Depot or Lowe's carries an assortment. 11/2 inch dia.
Should be one under kitchen sink.
There are generally one for each drain. Don't forget shower and washer/dryer plumbing.
Residential Building departments prefer not to see them used because the do fail eventually and need to be replaced.
Scott
I do not like them either, but definitely a lot easier that running vent pipes, especially if installed a drain in an island sink, etc.
This thread Sewer Odor, roof sewer vent, air admitance valves inside... (https://www.foreforums.com/index.php?topic=34106.msg312768#msg312768) will show where the 5 total AAVs are on our 2003 U320.
Better product is this one: Studor Redi-vent part number20362 @ $18.52 each (direct fit, 1.5" size is like original)
Original as yours is this one: Oatey part number 39012 @ $6.15 each
Best to replace the originals with either same product or the better Studor to prevent odors.
Studor is a brand and IMHO far better than the $10 black air admittance vent in your photo. If you are changing them go the extra expense. First time I changed mine I purchased one to put behind the toilet cabinet in a WTFE. There is a vent behind the washer dryer and until I finally decided to replace it with a Studor we put up with stinky phew. The white vent in my photo is a Studor.
I've only ever found 1, under the kitchen sink.
Looked and looked knowing there has to be at LEAST one more.
Changing the one I found took care of the smell so it's all good.
For now.....
I had one under the kitchen sink, bathroom sink (you may have to pull some drawers to see it), behind the toilet ( look in cabinet under the false bottom) and in the closet behind the washer/dryer. I didn't look to see if the shower had one. The Studor is a much better valve and more expensive. You currently have the Oatley brand. Much cheaper. You get what you pay for.
John M.
The Studor is wider and does not fit all positions in all coaches, under our kitchen sink the piping is against the wall with no space for the Studor mushroom style head. The old style cheater work fine for a good long time, just got to be replaced every now and then.
I found 3. Under the kitchen sink, in the bathroom closet, & behind the toilet in the laundry hamper.
I recommend going with the Studor brand not the Oatey. Just picked up one on Amazon for $13.71.
Studor 20346 Redi Vent, White: Window Screens: Amazon.com: Industrial &... (http://www.amazon.com/gp/product/B0039OEMT4/)
see ya
ken
The following thread helped me find all my vents, that I replaced. The one in worst shape was the one under the kitchen sink. After replacing it I went back and the new one was wet again. So I replaced it again raising it up as high as posible to the bottom of the kitchen sink counter, I believe the mounting instructions said the minimum angle that I had was ok, mounted thus due to it being mounted next to the counter brace.
and the vents I used....
1-1/2 inch Tuuber Vent 2x... 1-1/2 inch Tuuber Vent 2x Superior Seal Air Admittance Valve: Amazon.com:... (https://www.amazon.com/dp/B07N98QRY2?ref=ppx_pop_mob_ap_share)
Admittance Valve, black, grey vent, slow drain, odor (https://www.foreforums.com/index.php?topic=38139.0)