Rated 3.5 out of 5 by 11
Rated 1.0 out of 5.0 by Crabshack Did not work in my application
Easy to install but did not work in my application.
August 23, 2016
Rated 5.0 out of 5.0 by deide Very good functionality for it's intended purpose
Oatley has never let me down with any product and this air admittance valve is no exception.
The adaptability of 1-1/2 inches to 2 inches should cover just about any application you would have for this device. I used it on a 2 inch line in the garage for a sink drain, where it is virtually impossible and certainly not cost effective to run a vent line for the drain.
The drain works excellent and fast. With the sink filled to capacity, there is a slight chattering sound from the air admittance valve but this tells me it's working.
A tip - check before hand on individual plumbing codes for your area of jurisdiction to make certain it is allowed.
April 30, 2016
Rated 5.0 out of 5.0 by Lensters Works as advertised
I have some sort of an air blockage in my vents, so it didn't work for me, but it does exactly what it suppose to do.
March 28, 2016
Rated 5.0 out of 5.0 by GB13 An option!
There are so many instances when remodeling a bathroom, kitchen, laundry, wet bar or anywhere access to the main plumbing stack vent is difficult to connect to. This will allow air flow needed for proper draining but will not allow sewage gas to enter your home. Follow the instructions and check you local plumbing codes if air admittance valves can be used. Good product!
February 7, 2016
Rated 5.0 out of 5.0 by 5Xbuilder Install correctly and will work perfect
I've used these many times and they always work perfect. They are very reliable if installed correctly. Most people who complain about sewer smell did not seal it. Even though the threads screw tight there is no washer so you HAVE to use several wraps of Teflon tape around the threads and then screw it together. if not sewer gas will subtly escape through the threads not the valve. But once the connection is fully sealed you will have no leaks and the vent will only allow air into the pipe.
December 15, 2015
Rated 1.0 out of 5.0 by Douglas Horrid
I've used two of these before and both end up letting in a foul odor after a couple of weeks.
Like the other person said, run a real vent...
August 6, 2015
Rated 5.0 out of 5.0 by Matt it works !
I installed it in a closed system in a old farmhouse and it works and it works well in the basement. It works great keeping sewer smell from going up in the house, lets air into the system so there's not gurgling. It's a wonderful alternative to vent piping the only people that are against this are plumbers because they cannot charge you an extra thousand dollars for running pipe to the roof
May 13, 2015
Rated 1.0 out of 5.0 by Caleb NOT PERMITTED BY NYS CODE
I had a plumber use these in a commercial building. They are not a substitute for the venting that the code requires and is good plumbing practice. The commercial restrooms have too many fixture units and need to have a vent stack to the outside. The restrooms always have an odor, and in one installation, would not work properly. Not until this vent was eliminated and the venting done right did everything work, flush, and odor go away.
April 16, 2013