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Old 01-12-2015, 08:49 PM   #61
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Hang in there this will be fun..
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Old 01-14-2015, 07:44 PM   #62
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If the distance from the sink drain/vent to the shower p-trap is only 3.5 feet, and the distance from the sink drain/vent to the toilet is also only 3.5 feet, can the sink vent be the only vent for the group? I will using a 2" vent for the sink. I also did some more measuring and messed around with the layout some more. I do have the depth to wye straight up for the toilet. Saves me from having to cut up more concrete.
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Old 01-14-2015, 08:06 PM   #63
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YES. Distance to toilet doesn't matter.
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Old 01-14-2015, 09:41 PM   #64
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YES. Distance to toilet doesn't matter.
Why is it that the distance from the toilet to the vent does not matter?
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Old 01-14-2015, 09:49 PM   #65
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Because the horizontal wet vent itself has no distance qualifiers. Only fixture and pipe size matter.

Bathroom group fixtures and DFU for pipe size.

If you think on it a bit the pipe from the toilet to the lav where he is venting is sized for 2 inch. The waste water will be on the bottom of the pipe the air is on the upper part thus maintaining the vent. The only distance that matters is the shower trap to it's vent which is the lav connection itself. Because the trap of the shower cannot be above the diameter of its pipe. At 1/4 inch pitch Minimal for 2 inch 8 foot is max distance. The shower drain to the lav is just a drain and not a wet vent. The only portion of this that is a wet vent is lav to toilet.

This is IPC not UPC IPC is a minimum based code.

The size of the wet vent is determined on all its fixture load 2 for shower 1 for lav. 3 total making him have 2 inch from lav to toilet. Under IPC he actually could run 1.5 inch to the shower it must be 6 foot from the lav vent. I never recommend using 1.5 inch on a shower it's just Piss Poor plumbing but I would have to pass it as long as there was only 1 shower head .

IPC also has shower trap sizing by amount of heads in the shower, Body showers and all that crap they install now.

Last edited by Ghostmaker; 01-14-2015 at 10:05 PM.
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Old 01-14-2015, 10:30 PM   #66
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Why is it that the distance from the toilet to the vent does not matter?
The table you posted in post #51 is a UPC table and does not apply to IPC regulated states. UPC would require the toilet to have a vent within 6', the shower within 5'. or they could share a common vertical vent.

I believe only the latest UPC edition allows a limited amount of horizontal residential wet venting. I'm not real sure on that as my state has it's own code that is adopted from UPC within the last 2 years.

But prior to - I believe 2012- UPC did not allow any horizontal wet vents- except what they call "combination waste and vent" (an engineered system used in large floor layouts such as grocery store floor drains)

Clear as mud, huh
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Old 01-15-2015, 03:41 AM   #67
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Thanks! That's easier having to only deal with one vent pipe.
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Old 01-15-2015, 06:20 PM   #68
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That long post was trying to explain it all to hammerlane. When we changed code from our Ohio 1980 vent everything code to IPC we all had great doubts. AS it turned out it works fine last along time with one exception AAV use.
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Old 01-15-2015, 09:26 PM   #69
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Quote:
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That long post was trying to explain it all to hammerlane. When we changed code from our Ohio 1980 vent everything code to IPC we all had great doubts. AS it turned out it works fine last along time with one exception AAV use.
That long post scared me....lol
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Old 01-18-2015, 03:11 PM   #70
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Not sure what areas heel inlet wouldn't be allowed they are approved in ipc and even here in nc where they use ipc but add millions of ammendments, hate to think there is stricter areas...But from how it looks toilet is about 10ft from stack, then lav about 3 ft from toilet and shower about 3 ft from lav so if taking lav vent through roof, no need to vent shower too...wouldn't hurt anything except add alot of extra un needed work, hell compromise and put a access panel to service shower valve and run studor vent to also be serviceable through access
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Old 01-18-2015, 03:13 PM   #71
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Please don't misunderstand, I'm really not trying to be a smartalec, I've been a licensed plumber for 22yr in fl, va, nc and sc....I'm not doubting what your saying I've just never encountered anywhere stricter than nc and or Charleston sc
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Old 01-18-2015, 03:38 PM   #72
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Please don't misunderstand, I'm really not trying to be a smartalec, I've been a licensed plumber for 22yr in fl, va, nc and sc....I'm not doubting what your saying I've just never encountered anywhere stricter than nc and or Charleston sc
You need to move out west then.....
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Old 01-18-2015, 05:39 PM   #73
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Thanks. Yeah those distances are about right. I just wanted to make sure that I get it right the first time. Don't want to have the inspector to have to come back and I certainly don't want to re do the work! Trying to still get the time to do it though. Hopefully this coming weekend will be my chance. Definitely having the sink vent be the only vent will save me a bunch of time and work.
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Old 01-18-2015, 07:09 PM   #74
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Quote:
Originally Posted by Buz42812 View Post
Please don't misunderstand, I'm really not trying to be a smartalec, I've been a licensed plumber for 22yr in fl, va, nc and sc....I'm not doubting what your saying I've just never encountered anywhere stricter than nc and or Charleston sc
well let me tell you try working in and around pittsburgh pa ...inspectors follow the code to the tee...very little wiggle room...
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Old 01-18-2015, 11:31 PM   #75
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This thing still going !!
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