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    sadielee's Avatar
    sadielee Posts: 1, Reputation: 1
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    #1

    Jan 15, 2007, 03:40 AM
    Overflow and leaks from stand pipe
    The washer machine overflow thought the stand pipe. There is a trap at the end that is leaking from the top. Had a snake ran though the clean out.
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Jan 15, 2007, 07:06 AM
    First off fix the trap leak. One of two things is happening here. The most likely is a partial clog in the washer drain line. Snake the washer vent from the roof. Put out enough cable to reach the base and about 20 feet more to get out in the main.
    The second is the capacity of the trap and standpipe. If you have a older house like I have with a 1 1/2" trap and stand pipe then the newer washer pumps put out much more pressure then they used to and that overloads the system to the point of backing up. You have two options if this is the case.
    Redo the trap and standpipe assembly to 2" or install a compression fitting,(see image) on the standpipe and prevent the discharge from backing up. That's what I had to do to my washer and it's been working for years with no backups or problems. Good luck, Tom
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