Doug Henningsen
New Member
Any problem using a medium sweep 2" elbow on a (verticle) toilet vent?
Medium sweep elbow on toilet vent?
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wwhitney
In the Trades
If the elbow is at least 6" above the toilet flood rim on a dry vent serving only the toilet, there's no restriction.
If it's below that level, then under the UPC (California et al) the vent has to be plumbed like a drain. The vent also has to remain vertical (no more than 45 degrees away from plumb). So the only way I see to use any 90 degree bend would be to change the vent from rising at 45 degrees off plumb to 45 degrees off plumb the other way (e.g. change from "rising up and to the left" to "rising up and to the right"). For which I would think a quarter bend would be OK, as the outlet of the elbow is still vertical.
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Cheers, Wayne
If it's below that level, then under the UPC (California et al) the vent has to be plumbed like a drain. The vent also has to remain vertical (no more than 45 degrees away from plumb). So the only way I see to use any 90 degree bend would be to change the vent from rising at 45 degrees off plumb to 45 degrees off plumb the other way (e.g. change from "rising up and to the left" to "rising up and to the right"). For which I would think a quarter bend would be OK, as the outlet of the elbow is still vertical.
Chapter 9 Vents: Vents, California Plumbing Code 2019 | UpCodes
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Cheers, Wayne
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Doug Henningsen
New Member
Thanks Wayne (for the bad news...ok, better now than later!). Below is what I've got now (dry fitted).
This is a wall-mounted unit so I have limited space behind the unit due to the tank, even framed with 2x6. However, I have two options I suppose. 1) use 45's as you mention - good idea! Initially, I think this might be the best route....I like 45s over 90s anyhow. 2) frame out the wall behind the unit another inch or so to accommodate the 2" pipe. Other side of the toilet is a closet so not a huge loss.
Any more thoughts (now that I've provided the whole picture)?
Thanks
Doug...and yes, in California/UPC!
This is a wall-mounted unit so I have limited space behind the unit due to the tank, even framed with 2x6. However, I have two options I suppose. 1) use 45's as you mention - good idea! Initially, I think this might be the best route....I like 45s over 90s anyhow. 2) frame out the wall behind the unit another inch or so to accommodate the 2" pipe. Other side of the toilet is a closet so not a huge loss.
Any more thoughts (now that I've provided the whole picture)?
Thanks
Doug...and yes, in California/UPC!
Last edited:
wwhitney
In the Trades
I think you've identified the two possible solutions.
If the 2x6 wall is not load bearing, and if the Toto frame instructions don't have any additional limitations on holes in the double stud, then you could drill the double stud at a 45 degree angle. Or easier would be to drill two stacked holes and cut out the web between them, to form a racetrack shaped hole.
Cheers, Wayne
If the 2x6 wall is not load bearing, and if the Toto frame instructions don't have any additional limitations on holes in the double stud, then you could drill the double stud at a 45 degree angle. Or easier would be to drill two stacked holes and cut out the web between them, to form a racetrack shaped hole.
Cheers, Wayne
Doug Henningsen
New Member
Not load-bearing so good idea ...and I like the stacked holes thought too.
Wayne - huge thanks for your help.
Wayne - huge thanks for your help.
