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Old 01-26-2011, 05:10 PM   #1
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Washing Machine Drain Pipe overflows

Washing Machine drain pipe overflows on every wash I do. It's been doing this in our home since we moved in 17 yrs ago. Our only solution was using some wire & hanging the washing machine drain hose an extra few inches higher than the drain pipe (which is setup at 2ft high behind the wall.) Now all of a sudden our little trick doesnt work anymore. Also there is a leak at the bottom of the pipe where it meets concrete(where the arrow indicates)

Why is this washing machine drain pipe doing this?
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Last edited by evol200; 01-26-2011 at 05:13 PM.
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Old 01-27-2011, 07:10 AM   #2
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The proper height for a washer drain pipe is 42", min 30" above trap.


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Old 01-27-2011, 07:35 AM   #3
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Although your standpipe (vertical section) is a little short I do not think is the problem. I think you either have a partial clog in the trap or further down or a clogged vent. The piping looks like ABS so it is easy to work with. Since you have a leak anyways, I would cut out the trap and the sani-tee and replace it all. When you redo it, extend the standpipe section to the recommended height.
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Old 01-27-2011, 12:41 PM   #4
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Thank you for your replies. I needed some confirmation on the height. I did try to unclog the piping with a sink piping snake (which is '25 ft), nothing came up. So I was anxious to open the wall which was already deteriorated some to find out what it looked like behind there. Awesome, thanx guys.
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