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Old 08-13-2009, 05:41 AM   #1
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how many turns is acceptable on toilet drain


i am in the process of installing a toilet and had a question about how many 90 degree turns could be made with the main drain...
How do I explain this.....the new toilet will be about 7 feet from the foundation wall....
if you were to be inside the drain a 90 elbow would take you 24" towards the foundation wall.....then another 90 would be attached to send you down about 28" and to the right about 38", then another 90 would send you straight towards the foundation wall for the last 60 inches....the run from the foundation wall to the septic tank is about 5 or 6 feet....this setup would be best as far as existing structures go but if I had to use another design, so be it...
any advice is more than welcome...thanks

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Old 08-13-2009, 05:55 AM   #2
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how many turns is acceptable on toilet drain


i may not know as much as some of these guys on the site but i don't think you are limited to a certain number of turns just that the fittings meet code. if you are going to have a lot and you have the availability and room use sweeping elbows instead of regular elbows. these are a little bigger with "more" of a turn. there might be a number restriction of ell's based on length of pipe but i have never ran into it. thanks, bb

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Old 08-13-2009, 06:07 AM   #3
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how many turns is acceptable on toilet drain


i was going to put a cleanout at that last 90 just in case....the sweeping 90s would not be an issue either....as it is, the only vent i have is a 1 1/2 inch branch coming off of the kitchen sink drain, and that is for the whole system (tub, toilet, 2 sinks and washing machine), so i'm thinking any added vent would also be an improvement...thanks for your answer
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Old 08-13-2009, 06:37 AM   #4
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how many turns is acceptable on toilet drain


you are most welcome. one time i was called to a barn where the deer hunters had put themselves in a commode and lavaratory. it was simple and ran straight out to their custom made septic tank with no vent. the commode would only swirl when flushed. we decided a vent might be the answer. for some reason i couldn't cut the pipe so i was going to cut a round hole at the top of the pipe and somehow cut my hole out at the top of the pipe. i started with about a 1/2" bit to make my initial opening. after drilling the 1/2" hole in the top i went and flushed the commode out of curiosity and "wow" it started flushing fine with just a 1/2" hole in the pipe. so, any more air flow will help. and thank you for thanking me. even though i'm not looking for it, we don't see much appreciating in this world any more. bb
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Old 08-13-2009, 07:36 AM   #5
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how many turns is acceptable on toilet drain


funny how that little bit of vent worked....No news flash here, but a screen over the vent pipe also keeps the bees from clogging up the vent....not that this has ever happened to me...hehehe....again, thanks
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Old 08-13-2009, 09:50 AM   #6
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how many turns is acceptable on toilet drain


1 90 which is the closet bend .use t y with a 45 and cleanout
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Old 08-13-2009, 10:28 PM   #7
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how many turns is acceptable on toilet drain


yeah...a tee-wye (wye with a street 45) will work nicely for a cleanout. Get a female adapter and cleanout plug to go in the end. For any 90 degree turns on a horizontal plane, long sweep 90s are needed. What I usually use is a 45 and street 45 thus making a long sweep 90. (Sometimes just 2 regular 45s depending on the length of my 90 degree offset). This allows better flow and decreases the opportunity for clogs to form.

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