Oatey Sure-Vent 1-1/2 In. Air Admittance Valve Installation Kit - 1 Each

Awesome product and unlike some others on sale at Amazon, you get everything you need to install them under sinks, including the AAV. We ended up in a new area where we didn't know many people and hired a bad general contractor to build our dream home. He ignored the advice of a good plumber that told him there needed to be a lot more wet vents going through the roof, and hired a plumber who would do what he wanted and only put three wet vents in our house. Some fixture vent pipe had to travel 15 feet to get to a vertical wet vent pipe, where they recommend they travel no more than 5 feet. When our clothes washer or dishwasher expelled their water, it would suck the water out of the both the shower and the bathtub drain and then we would get major sewer smelling coming up through them. We had to duck tape them closed every time we used one of the washers. What no plumber or internet page, I could find, would tell me, was adding these vents to into the same vent system, but not on the fixture who's p-trap was being syphoned or the fixture causing the syphoned (washers) would help keep stop the syphoning. The only easy place to install these was under the sinks and it worked! No more syphoning and sewer smell! Saved $1,000 of dollars not having to pay a plumber and carpenter to install more wet vents.

This is a nice, all-in-one kit. I thought I would have to install a separate AAV to remote a utility sink away from the plumbing stack in a garage. This kit works perfectly. All the necessary adapters and gaskets are included (you may need a different tail pipe for your sink, which I did.) It's plenty adjustable. Ensure your rough-in drain pipe (1-1/2" DWV) is >7" below the bottom of the sink basin to fit the AAV height which is 4" above the drain pipe. I bought this kit prior to roughing in my drain line so I knew the clearances and could pitch the line properly. The AAV isn't super-high quality (Oatey and Studor offer different styles) but for a single sink, it works well.

My kitchen sinks drainage have been getting worse for a while with VERY slow draining or a gusher when disposal was turned on (like old faithful but it smells worse). So, I took trap and pipes off and made sure they were not blocked. Then a call to a plumber to snake out the sewer line with a pretty long snake (would make a T shirt: "plumbers have long snakes"). Didn't find a clog. He suggested an air admittance problem with a $1 or 2K fix if his outfit did it. Being a cheapskate, I ordered the Oatey valve and put it in to address that possibility. It tested OK before install, that is, the valve opened and closed very easily/reliably when slight vacuum or pressure was applied. The Oatey valve installed easily, and components were good quality. Unfortunately it didn't solve the problem so no 5th star. And there wasn't an instruction/hookup sheet included and although a simple device there are things to know (need a least a 4 inch distance of valve above the drain line, valve must be carefully placed in a true vertical position) and maybe I needed to know more. I can't fault the product design but the magic didn't work for me.

I ordered and installed this hoping it would fix a slow bathroom sink drain. It didn't. But the kit itself is fine, all the components you need to plumb in a bathroom sink drain including the vent. Problem in my sink turned out to be the stopper, not the vent.

I bought the Oatey Sure Vent for a laundry sink I installed outside a bathroom in our garage. I initially ran the the sink's waste line about ten feet across the floor to drain in the shower pan, but water wouldn't flow out of the sink smoothly without a vent-- and there was no way I was going to run a traditional vent through a second story and penetrate the roof. The Sure Vent took about 10 minutes to install with no tools and now the laundry sink drains quickly and silently.

This will not fit between the drain of a standard vanity sink and the wall connection. The sweep on the p-trap is not a sharp 90° and the tee fitting that holds the Oatey air admittance vent is too long on the receiving horizontal leg. Had there been better dimensions listed in the ad, I would've known this in advance. I should've been more careful, but this design should be better matched for a typical connection.

Good quality and the sink drain works great.

Complete kit. I didn’t need to buy anything else. Easy to install. It did help my sink flow better. This kit cost me less than buying just the valve at a big box store.

Excelente y fácil instalación. No mas malos olores. Lleva mas de 6 meses instaldo sin problemas