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Thread: Sanitary Tee on Back in DWV

  1. #1
    DIY Junior Member plumbnut's Avatar
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    Default Sanitary Tee on Back in DWV

    I have read that a san. tee must be installed with the main run in the vertical postion. I read this after I installed the 2" sanitary tees shown in the attached picture. If these are not right, what do I need to replace them with? Also, the washing machine stand pipe is causing me grief. I am doubtful about the dry fit arrangement shown in the picture. Thanks for any enlightenment the plumbing community can provide - Steven Harrison.
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    Forum Admin, Expert Plumber Terry's Avatar
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    The washer needs a combo on the horizontal.



    Then a vertical santee, with an arm for the p-trap
    Above the vertical santee, a santee picking up the vent for the revent.

    What you have is something like a funny illegal S trap
    Last edited by Terry; 09-15-2007 at 06:17 PM.

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    Licensed Grump GrumpyPlumber's Avatar
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    I take it you never did find a plumber out there in Cali....hopefully your remodel goes well with the customer.
    "The biggest regrets we have in life are the chances we never took."

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    DIY Junior Member plumbnut's Avatar
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    Thanks for the answer and explanation Terry. That helps alot. Grumpy, I'm at the beach in Alabama - definitely not looking for any plumbers or anybody else in California.

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    Licensed Grump GrumpyPlumber's Avatar
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    Looks alot like another job a guy was looking around for a plumber on.
    I tried to find him one, but couldn't.
    As far as the setup on your pic, Terry's dead on, that trap needs a vent run right where it goes vertical, the Tee-wye needs to be a long sweep..a combo wye or a wye with a 45 into it.
    "The biggest regrets we have in life are the chances we never took."

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    DIY Junior Member plumbnut's Avatar
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    Smile

    Thanks for your advice Grumpyplumber. Looking at your picture, I gotta say, you look a lot like Walter Mathau.

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    Moderator & Master Plumber hj's Avatar
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    Default drain

    You do not have a legal washer drain, and why are those other 3 lines connecting between the drain and the vent? If they are going to be drains then they are using the wrong fittings, and if not, then they are not needed.

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    DIY Junior Member plumbnut's Avatar
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    Thanks for the comment HJ -

    the other runs are revents for the washing machine and a utility sink (ell at right end will stub out to p-trap on the utility sink). I am new to plumbing and decided to try to vent all traps rather than rely on proximity to a main or secondary vent stack. Overkill I supose. Yes, the washing machine stand pipe is wrong and I intend to take Terry's advice and get it right. Will the extra vents hurt anything or are they merely redundant? Thanks again.

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    Plumber patrick88's Avatar
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    No just change the stand pipe S trap. Just cut the trap into the vent that seems to be for that trap anyways looks to be the one to the left of the S trap. Other than that looks ok.
    I'm just starting to work with an old friend of mine to bring solar electric and hot water systems, wind turbines, Flex Fuel Boilers, batteries, hydroponic gardening, books, pellet grills and more. Also the parts for DIY installation.

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    Commercial Plumber markts30's Avatar
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    IMHO a better way to pipe it would be as follows....
    Attached Images Attached Images   

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    DIY Junior Member plumbnut's Avatar
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    Thanks Patrick88 and Terry - I'll post a new pic once I redo it tomorrow.

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    DIY Junior Member plumbnut's Avatar
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    Thanks Markts30,

    That is a really nice set of graphics and it makes things real clear - the only question it brings up is the green arrow pointing to the "Y" and fitting - do I have the wrong one on the 3" drain/vent stack? Steven Harrison.

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    Commercial Plumber markts30's Avatar
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    The green arrow marked "Y" is simply the Y in the X/Y/Z co-ordinate system of AutoCad..
    It has nothing to do with the plumbing...
    That fitting can be a SanTee, Combo or figure fitting, it makes no difference...
    Your fitting there is fine...

  15. #15
    DIY Junior Member plumbnut's Avatar
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    Thanks for clearing up that little mystery - it just goes to show even a great illustration can be problematic to a novice such as myself.

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