I'm really hoping someone can help me, because I am on day 3 of this issue.
A couple of years ago, my wife and I decided to remodel our basement bathroom from an old 3-sided shower to a corner glass shower, with a new toilet and small floating vanity. What we found when we tore into it, was several hidden electrical boxes behind finished drywall and a plumbing configuration that looked like the old pipe screensaver from Windows. Well, 2 years later the bathroom is complete except for one issue, the non-overflow sink we installed takes about 30 minutes to drain. We have an umbrella drain for no overflow sinks installed. Because it is a floating vanity, there isn't a lot of real estate to work with underneath the sink. I have attached some pictures. From the sink drain trap the drain takes a 90 degree drop about 6 inches from a T down then travels 30 inches to the corner where there is another 90 degree turn and travels about 18 inches to the main stack/vent. I tried to install an AAV under the sink, but I could only install it about 3 inches above the trap and the instructions said it should be at least 6 inches above. So after much deliberation I opened up the back of the wall, which is in the laundry room. and installed an AAV 2 feet above the T joint. The odd thing was that while it didn't work at first, after I fill the sink with water, when I loosened the AAV a couple of turns the sink emptied very quickly. But only the one time. I have tried it without the AAV (just opened the pipe on the top) with no luck. Not sure if this means there could be a clog somewhere that has nothing to do with the venting or not. Any help would be greatly appreciated.
A couple of years ago, my wife and I decided to remodel our basement bathroom from an old 3-sided shower to a corner glass shower, with a new toilet and small floating vanity. What we found when we tore into it, was several hidden electrical boxes behind finished drywall and a plumbing configuration that looked like the old pipe screensaver from Windows. Well, 2 years later the bathroom is complete except for one issue, the non-overflow sink we installed takes about 30 minutes to drain. We have an umbrella drain for no overflow sinks installed. Because it is a floating vanity, there isn't a lot of real estate to work with underneath the sink. I have attached some pictures. From the sink drain trap the drain takes a 90 degree drop about 6 inches from a T down then travels 30 inches to the corner where there is another 90 degree turn and travels about 18 inches to the main stack/vent. I tried to install an AAV under the sink, but I could only install it about 3 inches above the trap and the instructions said it should be at least 6 inches above. So after much deliberation I opened up the back of the wall, which is in the laundry room. and installed an AAV 2 feet above the T joint. The odd thing was that while it didn't work at first, after I fill the sink with water, when I loosened the AAV a couple of turns the sink emptied very quickly. But only the one time. I have tried it without the AAV (just opened the pipe on the top) with no luck. Not sure if this means there could be a clog somewhere that has nothing to do with the venting or not. Any help would be greatly appreciated.
