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Old 01-07-2018, 04:17 PM   #1
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Default Washer standpipe

There are a couple issues with the current standpipe setup. From the pictures I clearly don't have a p trap. Based on the sewer line being vertical and about 4 feet from the ground I don't know how to do it so it is to code.

So one issue is the smell, not too concerned because it's very mild, but I know a p trap would help. My other more concerning issue is the constant breeze that I get into the basement. The negative degree weather is really making it worse.

I attached pictures of the setup hoping to get some sort of resolution. Thank you in advance for the help.

IMG_20180107_111126476.jpg   IMG_20180107_111105624.jpg   IMG_20180107_111102105.jpg  
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Old 01-07-2018, 04:41 PM   #2
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Yeah, that's pretty funny and sad all in one package.

What is coming into that on the horizontal before the wye?
to be code compliant is probably not feasibly possible, but to eliminate/trap the sewer gases your going to need a p-trap.
Replace the wye with a combo fitting. stack a santee on top of the combo with a p-trap into the sanitary tee. raise the top of the santee and install an AAV.
add a 3-4 ft stand pipe on the p-trap. gonna be a bit taller than normal.
Gonna make your washer work a bit harder to pump out but it is what it is

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Old 01-07-2018, 05:39 PM   #3
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The left leads to the kitchen sink.

That set up will help with the draft coming down the pipe?

Also, above pipe above the p-trap, how short can that be? The vertical pipe is about 50" from the ground and I believe its 55" maximum height for the washer drain pipe. But what do I know.

Oh I didn't notice the 3-4ft stand pipe. That would be about 8ft from the ground, ceiling height is about 6.5ft, so even if the washer could push it up 8 ft I couldn't do it.

If I did 6-12 inch stand pipe above the p trap, is that useless for my purpose?

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Old 01-11-2018, 06:33 PM   #4
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Just put the standpipe as high as you can. Like mentioned above it isn't code your just trying to fix your trap issue.
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Old 01-11-2018, 06:53 PM   #5
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Stand pipe must at at least be 18 inches

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