Washing machine drain backing up.

Discussion in 'Drain Cleaning' started by Westside, Jan 19, 2021.

  1. Westside

    Westside New Member

    Joined:
    Jan 19, 2021
    Location:
    Texas
    When the washing machine goes to drain cycle the drain pipe is back flowing, I've snaked the drain, used a bladder, and even just ran the garden hose down it full blast and drains fine, yet when I put washing machine drain hose in the drain it immediately starts back flowing again, I'm baffled. Need help on this problem.
     
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    New washer or old washer.
    Old 1.5" drain or something from the 70's and on making it 2".
    Snaking the drain, did you pull out anything? Does this connect up with the kitchen sink drain?
     
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  4. Westside

    Westside New Member

    Joined:
    Jan 19, 2021
    Location:
    Texas
    Old washing machine, 2" drain pipe, I don't know if it connects to kitchen sink drain, this is the only drainage problem in the house.
     
  5. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    1. If this is not hidden in the wall, how tall is the standpipe above the trap?
    2. How long did that standpipe work with that washing machine before the problem occurred? If long, get somebody in with a bigger machine.

    You missed this one:
     
  6. Westside

    Westside New Member

    Joined:
    Jan 19, 2021
    Location:
    Texas
    Snaking it pulled nothing out, the standpipe is hidden in the wall, it has worked with no problems for the 13 years we've been in this house, why does running the hose on full blast not backup the standpipe but when I put the washing machine drain hose in it does?
     
  7. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    I am guessing the hose puts out 5 gpm and the WM puts out 12 to 15?
     
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