Forum Title: Bathroom Wet Venting
So I've been doing a full remodel of our bathroom given water damage from the last owners. I've gone down to the joists & studs. Now I'm looking at drainage/venting solutions. I've got a few plumbers coming by in the next few weeks, but wanted to get a broader range of opinions. I have a single standard vent of 2" going up through the roof at this point. I'm trying to avoid tearing out the ceiling, as it's the only damn thing in the bathroom that was salvageable. So I started looking into AAV (eeek, not liking what I've been reading) and wet venting. So I went through and read a ton of code, and tables, and really get lost when they start talking about maximum distances from certain portions of the system to others based on pipe sizes. So here's a rough idea of what I would like to do, but I'm not sure if the piping sizes & distances will be up to code.
Category: Plumber Post By: LORRAINE DAY (Kirkland, WA), 12/12/2016

If I understand correctly, IPC allows longer trap arm lengths than UPC. I think UPC had a limit of 36? Someone correct me if I'm wrong. IPC has a chart based on the pipe diameter. I believe 2 pipe can run 5' or 6' before it vents. The general rule is that the drop can't be more than 1 pipe diameter (or else the water completely blocks the pipe and prevents venting).

- PETER CAMPBELL (Minneapolis, MN), 09/23/2017

Apologies, thought I added that. I live in Upstate New York, so IPC.

- JONATHAN FLORES (Chattanooga, TN), 09/28/2017

What code are you using? Different strokes for different folks? Quote: Originally Posted by Zanne I was curious about which states follow which plumbing code and found this on the forums at and filled in and changed based on Alabama IPC adopted by Local Governments Alaska UPC adopted at State level but IPC in use locally Arizona UPC adopted at State level but IPC in use locally Arkansas uses IPC California is based on UPC Colorado uses IPC Connecticut IPC effective Statewide D.C. IPC effective in city Delaware IPC effective Statewide Florida IPC effective Statewide Georgia IPC effective Statewide Guam uses IPC Hawaii uses UPC Idaho uses IPC Illinois Develops their own code but IPC adopted by Local Governments Indiana uses the Indiana Plumbing Code (as of 2012 it used 2006 IPC second printing) Iowa IPC adopted by Local Governments and statewide Kansas uses IPC Kentucky State Plumbing Code based on IPC precursorLouisiana State Plumbing Code based on IPC precursor Maine IPC adopted by Local Governments Maryland uses IPC Massachusetts uses UPC, 248 CMR 10.00. Michigan IPC effective Statewide Minnesota uses Minnesota Plumbing Code Mississippi IPC adopted by Local Governments Missouri uses UPC Montana uses UPC Nebraska uses IPC Nevada uses IPC New Hampshire IPC effective Statewide New Jersey uses NSPC New Mexico uses the New Mexico Plumbing Code based on UPC New York IPC effective Statewide North Carolina IPC effective Statewide North Dakota uses IPC Ohio IPC effective Statewide Oklahoma IPC effective Statewide Oregon uses the Oregon Specialty Plumbing Code based on UPC Pennsylvania adopted IPC Puerto Rico IPC effective Statewide Rhode Island IPC effective Statewide South Carolina IPC effective Statewide South Dakota uses UPC Tennessee IPC effective Statewide Texas IPC at State but Austin, Houston, San Antonio use UPC The Texas State Board of Plumbing Examiners recognizes the 2006 editions of the UPC, IPC, & IFGC which means each city or town in the state can either adopt the UPC or IPC/IFGC regardless of edition. Utah IPC effective Statewide Vermont Use 1990 BOCA (BOCA now under IPC) Virginia IPC effective Statewide Washington uses UPC West Virginia IPC effective StatewideWisconsin Plumbing Code Link Wyoming Both IPC & UPC used by Local Governments made to Louisiana plumbing code in 2013 Louisiana does not allow AAVs and the allowable distance from trap to vent in a 2 drain was reduced from 8' to 6'. Any corrections or additions?

- KIRK RODGERS (Redondo Beach, CA), 10/11/2017

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