Sanitary Tee on Back in DWV

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by plumbnut, Sep 15, 2007.

  1. plumbnut

    plumbnut New Member

    Messages:
    10
    Location:
    Orange Beach, AL
    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.

    Attached Files:

  2. Terry

    Terry Administrator Staff Member

    Messages:
    15,121
    Location:
    Bothell, Washington
    [​IMG]
    The washer needs a combo on the horizontal.

    [​IMG]

    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: Sep 15, 2007
  3. GrumpyPlumber

    GrumpyPlumber Licensed Grump

    Messages:
    1,404
    Location:
    Licensed Grump
    I take it you never did find a plumber out there in Cali....hopefully your remodel goes well with the customer.
  4. plumbnut

    plumbnut New Member

    Messages:
    10
    Location:
    Orange Beach, AL
    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.
  5. GrumpyPlumber

    GrumpyPlumber Licensed Grump

    Messages:
    1,404
    Location:
    Licensed Grump
    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.
  6. plumbnut

    plumbnut New Member

    Messages:
    10
    Location:
    Orange Beach, AL
    Thanks for your advice Grumpyplumber. Looking at your picture, I gotta say, you look a lot like Walter Mathau.
  7. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,815
    Location:
    Cave Creek, Arizona
    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.
  8. plumbnut

    plumbnut New Member

    Messages:
    10
    Location:
    Orange Beach, AL
    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.
  9. patrick88

    patrick88 Plumber

    Messages:
    836
    Location:
    Webster Ma.
    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.
  10. Terry

    Terry Administrator Staff Member

    Messages:
    15,121
    Location:
    Bothell, Washington
  11. markts30

    markts30 Commercial Plumber

    Messages:
    630
    Location:
    Phoenix, AZ
    IMHO a better way to pipe it would be as follows....

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  12. plumbnut

    plumbnut New Member

    Messages:
    10
    Location:
    Orange Beach, AL
    Thanks Patrick88 and Terry - I'll post a new pic once I redo it tomorrow.
  13. plumbnut

    plumbnut New Member

    Messages:
    10
    Location:
    Orange Beach, AL
    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.
  14. markts30

    markts30 Commercial Plumber

    Messages:
    630
    Location:
    Phoenix, AZ
    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. plumbnut

    plumbnut New Member

    Messages:
    10
    Location:
    Orange Beach, AL
    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.
  16. OldHouse59

    OldHouse59 New Member

    Messages:
    5
    I know this thread is old but it's still a common topic.

    I noticed one thing that nobody commented on that does not look right to me. If the drain arm from the trap on his laundry sink is going straight into the stub out 90 on the right end, that would put his sink trap below the level of the horizontal drain pipe. If so, would that be OK or legal?

    Shouldn't all traps draining into a horizontal line be above that line?
  17. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,815
    Location:
    Cave Creek, Arizona
    quote; If the drain arm from the trap on his laundry sink is going straight into the stub out 90 on the right end, that would put his sink trap below the level of the horizontal drain pipe. If so, would that be OK or legal?

    Perfectly legal. There NO requirement that a trap be above a horizontal line. In fact, if it were "above that line" without an intervening vent THEN it would be illegal. As shown in the picture the two vents on either side of the 3" riser have absolutely NO function.
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