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Full Member
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May 9, 2010, 09:31 AM
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Washing machine drain line design
Hi, I was wondering if anyone had a picture or sketch of a drain with an AAV. Just want to make sure what I have is right.
Thanks
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Plumbing Expert
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May 9, 2010, 09:37 AM
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Here are 2 examples of AAV installation... (Edit: I have substituted first diagram with what I believe is better way to go )
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Home Repair & Remodeling Expert
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May 9, 2010, 11:31 AM
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I can go with Milo'as 2nd pic but the first one is like spitting into the wind. The washer is darining into an open ended stand pipe above a trap, no AAV needed with this design, the air just enters through the stand pipe
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Eternal Plumber
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May 9, 2010, 02:04 PM
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Bob, You said,
I can go with Milo'as 2nd pic but the first one is like spitting into the wind. The washer is darining into an open ended stand pipe above a trap, no AAV needed with this design,
But without the AAV you'd have a "S" trap.
Ad,
Photos #1. 2 and 4 show a illegal hook up, I see a direct connection to the city sewer without either a trap or a vent.
However , photo #3 shows both a trap and a AAV such as Milo pictured. That's your keeper. Good luck, Tom
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Full Member
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May 9, 2010, 05:00 PM
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So, 1 and 2 are the way it was...
3 and 4 are the new setup, though 4 is sideways---sorry about that...
What you can not see is that even before it didn't tie into the main sewer it tied into a sink's p trap... it was a very odd setup...
But it looks OK now? Even thought there is a harsh angle for the water to travel the almost "s"?
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Home Repair & Remodeling Expert
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May 9, 2010, 05:09 PM
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Yourtrap is more of an S than that"harsh" angle. Lloks fine to me. What does this drain into, looks like maybe a sump pump pit or something.
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Plumbing Expert
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May 9, 2010, 05:41 PM
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In pic three and four, you have installed the trap and aav just as any plumber would have. You are good to go. Good job.
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Full Member
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May 9, 2010, 07:11 PM
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Originally Posted by ballengerb1
Yourtrap is more of an S than that"harsh" angle. lloks fine to me. What does this drain into, looks like maybe a sump pump pit or something.
Nope that's my first floor, it goes down through the subfloor about another 5 feet into the basement, then it travels essentially at a zero pitch 6 feet, then makes a 90 degree turn through a wall 12 inches, then another 90 degree turn and on for about 6-7 feet at about a 45 degree pitch then connects to a utility sink (above the sinks P trap) draining out with the utility sink (again at almost a zero pitch in a big square to the main sewer line).
I know it is a cluster... but Im tackling it slowly but surely one step at a time!
Originally Posted by mygirlsdad77
in pic three and four, you have installed the trap and aav just as any plumber would have. You are good to go. Good job.
Sweet, thanks!
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Plumbing Expert
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May 9, 2010, 10:08 PM
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Good job !
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