Correct routing for washing machine and laundry tub

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Moe Allsopp

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I am remodeling my laundry room; which is very small and allows limited plumbing space. I would like to route my washer drain and laundry tub in the more up to date fashion. Enclosed is a sketch of what I think I can do with the plumbing. The first portion is from the washing machine and dumps into a wye and then to the sewage stack, The second is the laundry tub which would come around and on top of the wye; also to finish into the stack. I know I am not using the right terminology, but does this sketch make sense? Please advise.
I understand the washer needs a 30" drain and "P" trap, obviously with drop in the run. Is there anything else it needs.
 

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Reach4

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Your washing machine standpipe needs a 2 inch or bigger pipes for drain and 1.5 or bigger for vent. There is a minimum and maximum height for the standpipe. Your laundry sink needs a vent, which your drawing does not show. I don't know sizes.

You will need to use the right fittings I think, and it it is not always obvious.

The simplest thing to do is to drain the washer into the laundry sink.

I am not a pro, but I thought I might give you a headstart on doing some more searching and first re-drawing to improve your plan.

laundry-tray.jpg
 
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Cacher_Chick

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The bend in the horizontal is fine, but there must be a vent for each fixture's trap arm at or prior to the point of the drain turning downward.
 
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