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Old 03-12-2010, 06:43 PM   #1
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Moving toilet need venting advice


I'm remodeling my upstairs bathroom and want to move the toilet about 10' from the main stack. In fact, the wasteline will run 5' one direction and turn 90 degrees and run the remaining 5' to the main stack. I think that's too far a run without additional venting so I plan to tap into the 1 1/2" vent the bathtub used before I moved it. That would locate the a vent pipe very near the 90 degree turn at 5' from the new toilet location with an additional 5' to go until it reaches the main stack. Will this be okay?

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Old 03-13-2010, 05:06 AM   #2
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Moving toilet need venting advice


the short answer is yes it would work. depending where your located it probably won't meet code. assuming that you only have the toilet on the branch. do you have enough space for proper pitch? 1/4" per foot = 2.5" @ 10'

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Old 03-13-2010, 05:45 AM   #3
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Moving toilet need venting advice


In our area, WC must be within 6' of main.
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Old 03-13-2010, 07:30 AM   #4
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Moving toilet need venting advice


Yes, I have space for proper pitch. Is that pitch a min or max or does it need to be exactly that degree until it reaches the main?
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Old 03-13-2010, 07:36 AM   #5
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Moving toilet need venting advice


I'm in an older house. Is there a way to locate a toilet more than the 6' maximum distance from the main stack? For example, there is a 4" cleanout at the base of the main in the basement. What if I installed a parallel stack by going up from this cleanout (installing a new cleanout of course) and angled it over closer to the proposed main floor toilet location. I'm gutting the bathroom so I could then go up the main level wall into the attic and either tie back into the existing main or, if that's not code, go straight up through the roof?
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Old 03-13-2010, 11:09 AM   #6
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Moving toilet need venting advice


Quote:
Originally Posted by Just Bill View Post
In our area, WC must be within 6' of main.
That seems like a crazy requirement. Does that include upstairs toilets as well?
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Old 03-14-2010, 07:25 AM   #7
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Moving toilet need venting advice


In philadelphia we can run a wc up to 8' off stack with no additional venting as long as it's a direct connection with no other fixtures on branch.
and it works just fine

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