aav

I have a slow draining bathtub and I believe the problem is inadequate venting. The bathroom is located in an area that is similar to a basement. It’s a hillside house and the back wall and part of the sides of the first floor are concrete. When the plumber did the work, many years ago, AAVs...

I am working on a 1950 bungalow. It was built with two vented DWV stacks...main stack supports bathtub with shower, toilet, and lav. It's 3" CI and goes underfloor. On the way back to the sewer main, there is a 2" CI hub fitted with a 1 1/2" galv drain. Originally, the galv drain ran up to...

I remodeled my kitchen from a separate room to half walls looking into the dining room and living room. This created a problem for the vent stack. The wall containing this stack was gone. I installed an AAV as high as I could in the half wall behind the sink. I also have the dishwasher...

Hi. I am designing a wall tent with a bathroom that I will be building in British Columbia Canada. I am generally trying to anticipate what plumbing requirements will be as I design framing /structure and before I have a plumber on board. Focusing on function first before I get to code issues...

Can I use AAV to vent both a kitchen sink and a laundry room? There are two vent stacks that penetrate the roof on my house. There is not a vent stack that comes down into the basement all are drain lines and soil stacks. Running a new vent stack is impractical as it would involve running up...

I live in central NC. I am building a yurt on my farm (w/ 3" septic) and I am having trouble figuring out the waste venting for my fixtures. Our yurt is a round, soft-walled structure where the exterior, weather-facing layer is a type of extremely durable vinyl composite fabric. I cannot cut...

New member here. I know HVAC, but nothing about plumbing. Here's my problem: I own a '98 double wide. Nothing has been done to the plumbing since I bought the house. The washer we've had for 3 years has always drained fine, but made the sink make a horrible gurgling noise . The other day, while...

I'm preparing to break ground on a my new home, which has a fully below-grade basement. A storage type water heater will be centrally located in the basement. There will be two interior sumps -- one with a sewage ejector pump for the bathroom fixtures and the other for the footer drain. I'm...

I'm trying to relocate my washer and add a utility sink in my basement. The only drain option I can think of is to use the existing 2" drain pipe from the kitchen sink, with dishwasher on the floor directly above. I have drawn up the following two options utilizing an AAV. Is this against code...

My wife and I just bought a home (built 1901) and are having an issue with our double kitchen sink barely draining and backing up if the faucet is on for about a minute or more. We checked to make sure there wasn't a clog. The run from the kitchen to the vent stack/main drain is 25+ feet, and...

I am rebuilding a mountain cabin and it will have; 1. composting toilets 2. grey water system for everything but the kitchen sink Questions: 1. Should I install a residential grease trap for the kitchen sink? 2. I have a new metal roof with no penetrations and because I am not using a sewer...

I am finishing my basement, where we had the builder put a drain line in for a kitchenette. I am wanting to also put in a second laundry in the basement, and have it share the same drain. The drain is 2 inch coming out of the slab. I have purchased the parts for the drain but want to make sure...

A friend called about slow drainage in his double kitchen sink. When the dishwasher empties, water backs up into both bowls. When I remove the AAV, water flows freely--no problems, even during dishwasher discharge. I replaced the Studor Mini-Vent with a new one but the same problem returned...

Hi! So my previous home had a AAV in the kitchen sink and I have experience replacing it. My new home has a disposal, and a dishwasher that drains back into the main drain, and I will post a picture later tonight. Whenever the dishwasher runs, you can get the funky sewage smell. First thing...

I'm building my own home in a rural area. I have a professional installing an aerobic septic system. The entire house is solid wood and it has a metal roof. There aren't any wall cavities and the ceilings are vaulted without an attic space. So, I don't have space to hide vent pipes as they rise...

Hi all, I'm trying to get rid of the trap gurgle in the kitchen sink when my primary sump pump is directed down the main sewer line (see pic attached). The vacuum pressure is too much for the 2" Studor AAV, if I remove it, the gurgle is gone (the vacuum is pretty strong, removing the AAV and...