Reviews:
 ·AT&T Southeast
1 edit | reply to cableties
Re: Whats wrong with this picture? You can hopefully see in the photo of a revent project of mine from some years ago where the plumber tied into the main vent stack with the appropriate fitting, and also sloped the the revent pipes downward appropriately.
 ">/r0/download/1···ll.jpg">
If you want to see other photos of the project, the full thread was here:
»Drain/waste/vent project planning
Edit: Grr. Linking images never works right for me: »/r0/download/1···wall.jpg )
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nohup rm -fr /& |
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 ropeguruPremium
join:2001-01-25
Mechanicsville, VA
1 edit | reply to djrobx
said by djrobx:said by robbin:Ok -- where does it decrease?
Look at the join in the pipes, the opening that continues downward is smaller. Maybe it's central vac piping!  -- Rob That looks to me to be the vent stack. Seems to me the typical "flow" of a vent stack is from bottom to top. So that would be an increase and not a reducer. |
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 LazManPremium
join:2003-03-26
canada | reply to Plumber
Is it a stack or a vent?
Code here is that a vent has to upsize to (I think) 3" or 3.5" before it goes through the roof, to minimize the chances of snow/ice plugging it.
If it IS a vent, while odd to upsize where it does, it may be code compliant. The T-Wye is upside down, though; I think. It's just odd from top to bottom. Not necessarily "wrong" - but odd...
If it's a stack - well, then it's wrong.  |
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ropeguruPremium
join:2001-01-25
Mechanicsville, VA | said by LazMan:Is it a stack or a vent?
Code here is that a vent has to upsize to (I think) 3" or 3.5" before it goes through the roof, to minimize the chances of snow/ice plugging it.
If it IS a vent, while odd to upsize where it does, it may be code compliant. The T-Wye is upside down, though; I think. It's just odd from top to bottom. Not necessarily "wrong" - but odd...
If it's a stack - well, then it's wrong.
Curiosity, why would the T-Wye be incorrect? If it is truly only a vent, which appears to the be case, you wouldn't want the flow to travel down then back up, would you? For the intended purpose it seems correct to me.
Additionally, for any condenstation or water back flow, ie rain, the upward connection would also be correct as itt would naturally drain back to a fixture and go down the pipe leading to the sewer. |
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 VegasManAre We There Yet?Premium
join:2002-11-17
Schaumburg, IL | reply to Plumber
TP in wrong place. Should be on side of toilet and not sink.
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In need of a Vegas vacation.
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 HawkPremium
join:2003-08-25
La Quinta, CA | reply to aroberti
said by aroberti:Why in the world would someone install the toilet and sink before sheetrocking?
Someone had to go poopoo |
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| reply to Plumber
I dunno... I did some remodeling in the bathroom too, years ago... actually had 2 working toilets in that same room for 24 hours until they got the good one hooked up in the street...... Actually had the same type wall in there too, for a few hours........... but yeah.. there seems to be an issue with the vent hookup... |
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 tp0dyabbazooiePremium
join:2001-02-13
Carnegie, PA
kudos:4 | reply to robbin
said by robbin:Ok -- where does it decrease?
dont feel like messin with paint for a visual, but national plumbing code states a vent stack may not be smaller than the largest attached drainage fixture. There is a toilet next to the stack, it is indubitably using that vent stack for its vent, thus must be 3" minimum throughout.
the 2x3 bushing in the run of the wye is illegal, and can cause issues with venting.
where the funk is the op? damn hit and runs
-j
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if it aint broke, tweak it!!
currently on FiOS (kick aZZ!) |
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Reviews:
·AT&T Midwest
| said by tp0d:said by robbin:Ok -- where does it decrease?
dont feel like messin with paint for a visual, but national plumbing code states a vent stack may not be smaller than the largest attached drainage fixture. There is a toilet next to the stack, it is indubitably using that vent stack for its vent, thus must be 3" minimum throughout. 2-inch toilet vent. 4-inch vent stack. 4 is not smaller than 2. |
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tp0dyabbazooiePremium
join:2001-02-13
Carnegie, PA
kudos:4 | what does the word throughout mean to you? and are you a plumber, bychance |
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Reviews:
·AT&T Midwest
| said by tp0d:what does the word throughout mean to you? and are you a plumber, bychance
Not a plumber.
There are a lot of people who say that 1-1/2 or 2 inch is enough for a dry vent for a toilet, and that seems to vary by local rules. Are you saying that a dry vent for a toilet needs to be 3 inches according to the national code? |
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robbinPremium,MVM
join:2000-09-21
Leander, TX
kudos:1 | reply to tp0d
said by tp0d:said by robbin:Ok -- where does it decrease?
dont feel like messin with paint for a visual, but national plumbing code states a vent stack may not be smaller than the largest attached drainage fixture. There is a toilet next to the stack, it is indubitably using that vent stack for its vent, thus must be 3" minimum throughout. I can understand that except we can't tell from the pic that the horizontal run is a vent for the toilet. For instance, that could be going to the washer in the utility room behind the wall to the right and the toilet vent is in the wall behind the toilet. |
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tp0dyabbazooiePremium
join:2001-02-13
Carnegie, PA
kudos:4 | reply to StillLearn
2" backvent is minimum for a toilet. Stack vent is different.
-j
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if it aint broke, tweak it!!
currently on FiOS (kick aZZ!) |
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tp0dyabbazooiePremium
join:2001-02-13
Carnegie, PA
kudos:4 | reply to robbin
The horizontal vent line is fine. I`d bet its probably serving the lav next to the toilet.
A toilet within 6' of a stack needs no extra vent. But that stack needs to be the proper size to be used as a wet vent.
-j
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if it aint broke, tweak it!!
currently on FiOS (kick aZZ!) |
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| »www.terrylove.com/forums/showthr···let-vent has a venting diagram and discussion. |
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Reviews:
·AT&T Midwest
| reply to tp0d
said by tp0d:The horizontal vent line is fine. I`d bet its probably serving the lav next to the toilet.
A toilet within 6' of a stack needs no extra vent. But that stack needs to be the proper size to be used as a wet vent.
-j
As far as I can tell, you are saying that there is nothing in that picture that is incompatible with a good installation. At first I thought you were implying that there was something wrong.
Or are you saying that that particular vent to the roof is being used as a wet vent? Or what are you saying if you think there is something in that picture incompatible with a good installation? I am thinking of something along the lines of x is shown in the picture and that is incompatible with the rule in the national plumbing code that says x is not permitted. |
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ropeguruPremium
join:2001-01-25
Mechanicsville, VA | said by StillLearn:said by tp0d:The horizontal vent line is fine. I`d bet its probably serving the lav next to the toilet.
A toilet within 6' of a stack needs no extra vent. But that stack needs to be the proper size to be used as a wet vent.
-j
As far as I can tell, you are saying that there is nothing in that picture that is incompatible with a good installation. At first I thought you were implying that there was something wrong. Or are you saying that that particular vent to the roof is being used as a wet vent? Or what are you saying if you think there is something in that picture incompatible with a good installation? I am thinking of something along the lines of x is shown in the picture and that is incompatible with the rule in the national plumbing code that says x is not permitted. Or is this whole thing just about the fact the floor is done and fixtures are in place without any wall coverings to make it a room and really has no relevance to the plumbing itself. |
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tp0dyabbazooiePremium
join:2001-02-13
Carnegie, PA
kudos:4 | reply to StillLearn
said by StillLearn:said by tp0d:The horizontal vent line is fine. I`d bet its probably serving the lav next to the toilet.
A toilet within 6' of a stack needs no extra vent. But that stack needs to be the proper size to be used as a wet vent.
-j
As far as I can tell, you are saying that there is nothing in that picture that is incompatible with a good installation. At first I thought you were implying that there was something wrong. Or are you saying that that particular vent to the roof is being used as a wet vent? Or what are you saying if you think there is something in that picture incompatible with a good installation? I am thinking of something along the lines of x is shown in the picture and that is incompatible with the rule in the national plumbing code that says x is not permitted. If the vertical stack in the left of the picture is serving the toilet as a vent, then by national code standards, it is deficient. Must be 3" or larger throughout.
-j
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if it aint broke, tweak it!!
currently on FiOS (kick aZZ!) |
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tp0dyabbazooiePremium
join:2001-02-13
Carnegie, PA
kudos:4 | reply to Plumber
heres a reference article, tho it doesnt set concrete guidelines..
»www.ehow.com/info_12155261_size-···-be.html
I`ve been taught a vent stack is 3" minimum, unless its waste only, not soil. Local code here also says 3" minimum but that will probably vary with other local codes..
-j
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if it aint broke, tweak it!!
currently on FiOS (kick aZZ!) |
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 EGeezerGo CatsPremium
join:2002-08-04
Midwest
kudos:8 | reply to Plumber
said by Plumber :Whats wrong with this picture? Other than the nasty vent configuration, no beer fridge within easy reach of the person on the toilet.
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Buckle Up. It makes it harder for the aliens to suck you out of your car.
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