Is this trap low enough?

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Old 04-04-09, 07:05 PM
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Is this trap low enough?

Hi,
Should this washing machine trap be deeper, so to hold more water?




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Last edited by HotxxxxxxxOKC; 04-04-09 at 08:28 PM.
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Old 04-04-09, 08:13 PM
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My trap is about the same size. It looks ok to me. Nice umbrella!
 
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Old 04-04-09, 08:34 PM
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That's in case he has a leak...............
 
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Old 04-04-09, 09:19 PM
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LOL. It took me a second but I got it.
 
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Old 04-05-09, 02:57 AM
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very ocassionally there is a slight 'sewerish" odor if I smell thew top of the pipe-wonder if maybe that's because machine was not used for a few days??That is why I thought more water in the "U" would solve that?
Also, love doing plumbing repairs-I guess deepening the trap could not hurt? More guidance needed. Thanks for all your help.
George
 
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Old 04-05-09, 04:49 AM
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The trap is adequately deep, so I wouldn't modify that part. The only problem I could see would be the lift necessary for your washer to lift the water. Normally the stand pipe isn't that high. Now, if you have a venting occlusion, flushing a commode will draw water from ptraps. Do you have any slow moving drains or slow toilets in the house?
 
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Old 04-05-09, 08:38 PM
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the trap should be able to hold 2" of water. making it deeper affects the way the water drains. the stand pipe should be a minimum of 18" from the trap to the top.

if the large pipe the washer drain ties into has something above draining into it you will need to run a vent for the washer drain. a toilet draining from above could be siphoning the trap which could cause the smell. a clogged vent will not affect how a fixture drains. if anything the fixture will drain better
 
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Old 04-14-09, 07:39 AM
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The downpipe from the top of the "U" is 21.5 inches, and the top of the pipe is 67 inches above the floor. LG recommends no more than 96 inches above the floor, so I am fine in that respect. The other tube drainig into the downpipe is a small condensate pump discharge which is a minimal amount of water. Spo it seems according to you guys, all is OK?
thanks
george
 
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Old 04-14-09, 01:34 PM
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trap

Originally Posted by geoss View Post
The downpipe from the top of the "U" is 21.5 inches, and the top of the pipe is 67 inches above the floor. LG recommends no more than 96 inches above the floor, so I am fine in that respect. The other tube drainig into the downpipe is a small condensate pump discharge which is a minimal amount of water. Spo it seems according to you guys, all is OK?
thanks
george
As previously stated on this forum, you need a vent.
 
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Old 04-15-09, 09:02 AM
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Where/how do I run a vent for the washer drain?
Thanks,
George
 
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Old 04-16-09, 09:11 AM
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You have some code issues there, if you are under the UPC. Can't quote other codes, but UPC wants the trap 6" minimum 18" maximum above floor. Top of standpipe minimum 18" maximum 30" above trap.

Where is the vent?

BTW, deep traps are not allowed. They drain very slowly.
 
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