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Old 12-26-2013, 12:24 PM   #1
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Washing machine drain + trap


Is this the correct set up for a washing machine drain - trapAttachment 79252
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Old 12-26-2013, 12:43 PM   #2
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Washing machine drain + trap


Yes, that is OK
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Old 12-26-2013, 12:47 PM   #3
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Amstaf16, welcome to the forum.

Probably, due to the room layout, the way it's installed was a quick solution. IMO, it could have been done differently. Standpipe does seem kind of low. Could just be the pic. Are you having any problems with it? Is it vented? Wait for "E" or ghost to respond they will help you bring it up to code if needed. Stay tuned, others will be along shortly with more advice. Thanks.

Last edited by jmon; 12-26-2013 at 09:45 PM. Reason: relooked at photo
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Old 12-26-2013, 12:52 PM   #4
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Washing machine drain + trap


It is a trap.

We don't know anything about the vent.

The height above the weir is a little low.
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Old 12-26-2013, 01:21 PM   #5
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Washing machine drain + trap


Thank you. This line drains to the main. However, on occasion when the sewage ejector pit pumps (toilet shower and sink tie into ejector), water from the washing machine drain trap will back up overflow.
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Old 12-26-2013, 01:37 PM   #6
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Something is too small downstream, or the inlet could be raised high above the weir, or the entire thing could use a rooting because of soap and lint residue
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Old 12-26-2013, 02:02 PM   #7
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Washing machine drain + trap


Not certain from the pic, but it looks like the trap should have been lower to the floor so the standpipe could have been longer.

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Old 12-26-2013, 02:05 PM   #8
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Washing machine drain + trap


You need to change it to a standard pre made glue trap. Also 1.5 inch drains are not correct for and IPC code state.
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Old 12-26-2013, 09:43 PM   #9
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Thank you again !

The drain is in fact 2 inches. Do I need a higher / longer stand pipe as well?
How about a check valve? Or is that just a band aid?

Thanks again for your help.
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Old 12-26-2013, 09:48 PM   #10
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When someone speaks of 2" pipe, they are speaking of nominal pipe size. 1 1/2" pipe is about 1 15/16" while 2" pipe has an OD of 2 3/8"

So what is the OD of your pipe?
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Old 12-26-2013, 10:04 PM   #11
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Study the image in post #7. This image is based on Uniform Plumbing Code requirements.
It is the required UPC method for plumbing a washing machine because it's been found most effective. Try to match the dimensions given with 2" pipe and a proper trap and your problem will most likely disappear.
If not then you may have an issue with the pump piping as well- which is possible given the piping condition at the washer.
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Old 12-27-2013, 01:48 PM   #12
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Anti-Wingnut, Thank you for the reply...yes the OD is nearly 3 inches. I just had a a check valve installed. Initially made the issue worse. A lot of water backed up through washing machine drain. Plumber came back installed a stronger check valve. Seems to be better. Having main cleaned and snaked to street again. Seems like pump has too much pressure. Not sure.

Thank you again for all the responses. They are helpful and appreciated!!
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Old 12-27-2013, 02:26 PM   #13
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Washing machine drain + trap


Quote:
Originally Posted by audrycampbell View Post
Yes it looks fine. No need of change anything. Be sure to keep the cold to cold and hot to hot when you attache the hose ends to the valves in the box.
Do you read any of the other posts? What he has is not fine. What have the cold and hot connections have to do with a drain issue?
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