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Old 10-13-2013, 05:55 PM   #1
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Disposer height above drain


Just bought a deeper sink and am concerned about the height of the disposer. Looking at my current setup, I have 2 inches difference from the disposer drain height and the line into the wall; my new sink is 2 inches deeper so it looks like they will be even.

1. Is it ok for the disposer two to be the same height? I know it can't be lower.

2. Any reason looking at my current setup would not reflect the final heights with a new sink? I intend to put the new sink in and use the existing drain and disposer, so figured I don't need to measure anything else (except for the trap).

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Old 10-13-2013, 07:34 PM   #2
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Disposer height above drain


You may be in trouble----be prepared to open the back of the cabinet and lower the drain----when that time comes---post a picture and we will help===Mike

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Old 10-13-2013, 09:08 PM   #3
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Disposer height above drain


just try it and see what happens.
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Old 10-14-2013, 11:31 AM   #4
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Disposer height above drain


i found a message board where someone said they installed at the same height and they say water pools in the disposer. however, i also foun a Bob Vila video where they dealt with a deep sink and it appears they installed the disposer at the same height as the waste drain (link below, beginning at 2:20; see drain heights at 4:10 and on). i'd like to believe Mr. Vila did a correct install and that this would solve my problem, but would like more input for any pros on here.

http://www.bobvila.com/sections/tv-s...rbage-disposal
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Old 10-14-2013, 08:35 PM   #5
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Disposer height above drain


I watched the video---Bobs 'plumber' did screw up the install--the unit will hold sewage and drain poorly until it clogs up.

The ragged cuts ,installed without removing the shredded edges makes me think that is not a plumber--Mike---
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Old 10-14-2013, 09:33 PM   #6
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Disposer height above drain


thanks for the reply. turns out the disposer outfall would be 3/4" higher than the waste line. think that 3/4" height difference would be enough for adequate drainage?

i'd be willing to install and lower the waste line height later, if needed, but my current setup is two waste lines back into the wall that turn immediately once in the wall and join in the center (presumably). seems i'd have to take more wall out and do even more plumbing to lower the height (i'm putting in single basin).
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Last edited by boogie81; 10-14-2013 at 09:37 PM.
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Old 10-14-2013, 10:40 PM   #7
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Disposer height above drain


put a P-trap onto the garbage disposer and see what the drop is---

I have to lower a lot of drains every year---some are easy (the drains that go down)
others are a pain in the rear (pipes the go horizontally before going down)
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Old 10-15-2013, 02:24 PM   #8
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Disposer height above drain


Quote:
Originally Posted by oh'mike View Post
I watched the video---Bobs 'plumber' did screw up the install--the unit will hold sewage and drain poorly until it clogs up.

The ragged cuts ,installed without removing the shredded edges makes me think that is not a plumber--Mike---
That guy is a total HACK !!
Now that every thing from the disposer to the wall is solvent welded, how in the world are you going to get a cable in there to clear the blockage that coming very soon ?

I cant believe that Bob put that up as the "correct way" to do it.
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Old 10-15-2013, 07:33 PM   #9
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Hey, it's on T.V. so it must be right!
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Old 10-15-2013, 07:39 PM   #10
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Disposer height above drain


Love that super deep trap fix. Should be cleaning that out on a weekly basis. But if old bobby says it is good must be. Illegal install hack plumber bobby...

Your most likely will have to lower the drain outlet in the wall.
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Old 10-15-2013, 08:55 PM   #11
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Disposer height above drain


Quote:
Originally Posted by DidIDoThat View Post
That guy is a total HACK !!
Now that every thing from the disposer to the wall is solvent welded, how in the world are you going to get a cable in there to clear the blockage that coming very soon ?

I cant believe that Bob put that up as the "correct way" to do it.
Because bob villa was a total hack,you never saw him actually do any work on the show.
He just walked around bugging everybody else.

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