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Old 10-19-2013, 07:13 PM   #1
dave80906
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Default Trap outlet same level as disposal outlet

Is it against code or otherwise ill-advised to have the discharge end of the p-trap at the same level as the discharge port of the disposal? Seems like that might result in water standing in the disposal.



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Old 10-19-2013, 08:49 PM   #2
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Is it at the same height as the disposal outlet or the bottom of the outlet ell on the disposal? It can be piped without using the outlet ell. A picture would help.



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Old 10-20-2013, 05:00 PM   #3
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It is close to the same level as the outlet itself, maybe 1/4" lower.

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Old 10-20-2013, 06:59 PM   #4
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It looks like if you shorten up the disposal ell, you could use a standard tubular trap without the extension between the two sections of the trap.

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Old 10-21-2013, 01:01 AM   #5
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It does look that way, but the extension that slips over the ell won't go up high enough to allow that. My bigger concern was just whether the tap into the vertical drain pipe in the wall being virtually as high as the disposal outlet would create a problem.

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Old 10-24-2013, 12:51 AM   #6
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As long as the disposal outlet is even the slightest bit higher than the trap arm, the disposal will drain completely. Which is what you want to happen, you don't want the disposal to retain water.

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Old 10-30-2013, 03:46 AM   #7
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Code says 2 to 4 in only at the weir of the trap.. Technically .. That is ok

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Old 10-30-2013, 03:48 AM   #8
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This is prime example that people need to explore all options before putting in a deep basin sink. Also... No air gap?

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Old 03-06-2014, 12:56 AM   #9
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Quote:
Originally Posted by camaroderrick73 View Post
This is prime example that people need to explore all options before putting in a deep basin sink. Also... No air gap?
I am not a fan of air gaps, often they fail and leak causing water damage. Fortunately, inspectors in my area do not require them. BUT raise the dishwasher drain line up the the bottom of the countertop and secure it there. Otherwise you will often find ground up food particles in the bottom of your dishwasher...ick!

I would be very concerned about the flexible tube used to raise and connect the trap to the wall tube. Now that is a code violation in my area. NEVER ever use flexible corrugated tubular drainage parts. They are disasters waiting to happen and just not the right way to plumb a sink drain. Eliminate that part!

Edit: I now realize dave80906 did probably use a regular extension tube. Oops, sorry.
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Old 03-06-2014, 01:04 AM   #10
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I took that to be a standard slip joint extension tube. It could be a flexible connector, hard for me to tell from the picture.



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