bctile601
In the Trades
Hi, and thanks in advance for any possible help.
I come by way of John Bridge tile forums, I help out there a little, but kind of keep up with the pro discussions mostly.
Anyways, I am remodelling a main floor bath in a 1950's cape style house upstate New York. Yesterday was able to grout the tile floor and set our new toilet. The original copper / brass flange had some height issues, so I cut that out and fit in a new PVC flange with a length of 3" pipe and connected to the 3" copper line with a Fernco. No trouble.
When we flush the upstairs toilet, the downstairs burbles quite violently ( IMO ) almost thinking we had a bidet !
This was happening before the re-model, and acting on some local yocal advice, I installed a AAV above my new downstairs sink which connects to the 3" drain line from upstairs. There is a Y copper fitting in basement that catches the upstairs stack ( shower, toilet, sink ) and main floor sink, and a seperate 3" line for main floor toilet.
Not sure what other info to give, other than it is a public sewer, does not seem to have obstructions, the one toilet is brand new, the upstairs may be 4-5yrs old. I have noticed bees in the stack vent in the past, I have just come down from the roof, and there is no sign of them, but I hosed into the pipe for about 5-6mins, with no back up.
We all like pichers over there, so I have attached a few showing the AAV, and one of the underside of the upstairs toilet. The toilet has the vent connecting right to the ' heel ' of that elbow fitting, and the shower drain connects just below.
Thanks again for any help !
These are used with the vent at the top.
I come by way of John Bridge tile forums, I help out there a little, but kind of keep up with the pro discussions mostly.
Anyways, I am remodelling a main floor bath in a 1950's cape style house upstate New York. Yesterday was able to grout the tile floor and set our new toilet. The original copper / brass flange had some height issues, so I cut that out and fit in a new PVC flange with a length of 3" pipe and connected to the 3" copper line with a Fernco. No trouble.
When we flush the upstairs toilet, the downstairs burbles quite violently ( IMO ) almost thinking we had a bidet !
This was happening before the re-model, and acting on some local yocal advice, I installed a AAV above my new downstairs sink which connects to the 3" drain line from upstairs. There is a Y copper fitting in basement that catches the upstairs stack ( shower, toilet, sink ) and main floor sink, and a seperate 3" line for main floor toilet.
Not sure what other info to give, other than it is a public sewer, does not seem to have obstructions, the one toilet is brand new, the upstairs may be 4-5yrs old. I have noticed bees in the stack vent in the past, I have just come down from the roof, and there is no sign of them, but I hosed into the pipe for about 5-6mins, with no back up.
We all like pichers over there, so I have attached a few showing the AAV, and one of the underside of the upstairs toilet. The toilet has the vent connecting right to the ' heel ' of that elbow fitting, and the shower drain connects just below.
Thanks again for any help !
These are used with the vent at the top.
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