Check DWV Design

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by rmelo99, Jan 7, 2008.

  1. rmelo99

    rmelo99 Network Engineer

    Messages:
    349
    Location:
    Connecticut
    Can you guys check out this drain layout. This is a top view. All pipes are running left to right in between a joist. I have shown vent takeoffs for shower and toilet. The vents will actually rise up into the wall that runs parallel to this whole setup and then over to the right to tap into the 3" stack out to the roof.

    BTW the 2 wyes in the picture are sanitees(the program didn't have those so I used wyes in my diagram).

    Attached Files:

    Last edited: Jan 7, 2008
  2. Reverse the direction of the tee for the shower drain

    The washing machine drain needs a vent on it before it catches the shower drain


    Why can't you turn up tees instead of laying the fittings on 45's? They are permissable in this fashion but I'd thought I'd ask.

    I'm getting jealous of all these sophisticated drawings; feeling like MC Hammer............Can't touch this
  3. rmelo99

    rmelo99 Network Engineer

    Messages:
    349
    Location:
    Connecticut
    Thanks for the quick reply. I've been hunting for a program to do my drawings (IT GUY HERE)

    The drawing isn't complete. The washer will actually connect further down the line on the left via a long 90 elbow that drops into the 2" line on the left. It will have it's own vent that will tie back in with the shower,and toilet vents on the way back to the 3" stack on the right about 5' up horitzontally 2" line.

    I have to use roll the 45 deg because of joist height and to maintain line slope.

    Any other problems?
  4. Not that I can see from what you've posted, looks fine.


    Others will chime in so wait to see if they pick up on anything.

    I'm assuming you'll take all those vents off the individual fixtures and tie back into the main vent stack?
  5. rmelo99

    rmelo99 Network Engineer

    Messages:
    349
    Location:
    Connecticut
    Each fixture will have it's own vent

    Shower 1.5"
    Washer 1.5"
    Toilet 2"
    Sink 1.5"

    These will all tie back to a 2" horizontal run that will run almost parallel to the drain line but inside the wall at a height of about 5'. That will tie into the 3" stack with a 3x3x2 tee.
  6. frenchie

    frenchie Jack of all trades

  7. rmelo99

    rmelo99 Network Engineer

    Messages:
    349
    Location:
    Connecticut
    OMG...that program looks great..off to google. THANKS!

    OK got the program...i can get individual models from the 3d warehouse...but how do i get the entire collection so I have all the fittings in the program?
    Last edited: Jan 8, 2008
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