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Old 05-26-2017, 08:50 AM   #1
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Relocating Toilet Drain Pipe - 90 and 45 degrees


I am doing a bathroom remodel at my house. I am moving the location of the toilet and after cutting the slab the handyman came up with the attached configuration, see photos, for the toilet drain abs pipes. He is using a 90 and 45 degrees right next to one another. Is that OK? If not can I do three 45 degrees? I need the flange to be at the same location I have it now.
Any plumber response would be much appreciated.
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Relocating Toilet Drain Pipe - 90 and 45 degrees-pic001.jpg   Relocating Toilet Drain Pipe - 90 and 45 degrees-pic002.jpg  
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Old 05-26-2017, 09:11 AM   #2
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


For starters, the horizontal 90 is a vent 90. It is not an approved drainage fitting. Only for dry vents. It's radius is way too tight. It should be replaced with a long sweep.

Second, you should have a plumber doing the work.....or yourself. My state has laws against handy man plumbing- it can get very expensive to all involved.......
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Old 05-26-2017, 09:13 AM   #3
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


Revisiting the picture- cut the slab back further and use a 45 and/or 22 and get rid of 90
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Old 05-26-2017, 09:53 AM   #4
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


If it were mine i would find the main and cut in a new wye. You already have the floor tore up.
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Old 05-26-2017, 10:15 PM   #5
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


Under IPC the 3 inch or above 90 degree fitting cannot be used horizontal to horizontal. I make real plumbers fix that one.

Duh Inspector....
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Old 05-27-2017, 04:45 AM   #6
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


If I were doing it, I'd buy a few each 22, 45 & 60 and a new flange to see if I could route it over without any 90's. Play around with them dry. Plumbing fittings don't have to all be positioned at 45 & 90 to one another.

If I couldn't do that, I'd break up a little more concrete and dig so I could at least swing the 90 coming off the flange over to allow the use of 1 LS 90 or 2 45's. It would only take a few more inches.
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Old 05-28-2017, 07:41 PM   #7
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


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If I were doing it, I'd buy a few each 22, 45 & 60 and a new flange to see if I could route it over without any 90's. Play around with them dry. Plumbing fittings don't have to all be positioned at 45 & 90 to one another.

If I couldn't do that, I'd break up a little more concrete and dig so I could at least swing the 90 coming off the flange over to allow the use of 1 LS 90 or 2 45's. It would only take a few more inches.
Thank you for your responses. It really helped and makes sense.
Do you know if using three 45 degrees next to one another resulting in a total of 135 degrees would be OK. There is a drop of an inch along the total 135 degree turn. The flange needs to be moved slightly. See attached photo.
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Old 05-31-2017, 02:44 PM   #8
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


I think the question that is being asked by a few of the pros is: can you cut the main pipe back a little more and run straight into it with a 45 or 22? That looks like a new wall. What is behind that wall? Can you take the sheetrock and framing off and cut this pipe back another foot?

I hate to ask, but is it vented properly?

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Old 05-31-2017, 03:11 PM   #9
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


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Thank you for your responses. It really helped and makes sense.
Do you know if using three 45 degrees next to one another resulting in a total of 135 degrees would be OK. There is a drop of an inch along the total 135 degree turn. The flange needs to be moved slightly. See attached photo.
You could get some of that flange movement back with an adjustable offset flange.... just FYI.... if it matters
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Old 05-31-2017, 04:07 PM   #10
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


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You could get some of that flange movement back with an adjustable offset flange.... just FYI.... if it matters
Thank you very much for your responses. Never heard of the offset flange!!! It makes a whole world of difference. I will just use two 45 degrees instead of three and then use it with the offset flange and get it close to where I need it to be. Venting is original and I have just relocated the toilet location by about 2 feet.
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Old 05-31-2017, 04:51 PM   #11
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Re: Relocating Toilet Drain Pipe - 90 and 45 degrees


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Thank you very much for your responses. Never heard of the offset flange!!! It makes a whole world of difference. I will just use two 45 degrees instead of three and then use it with the offset flange and get it close to where I need it to be. Venting is original and I have just relocated the toilet location by about 2 feet.
I have to thank you for starting this thread AI11, as we were just talking about doing this very thing.

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