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Old 07-12-2011, 11:09 PM   #1
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drain pipe too high for disposal


Folks,

I'm trying to put in a new disposal to my kitchen sink. It turns out the existing drain pipe to the sewer is not so low, such that if I put in the disposal, the outlet from the disposal would be barely higher (<1/4 in.) than the drain pipe. Sounds like a problem, isn't it? If I am to lower the drain pipe, I may have to cut open the dry wall to take a look...major work. Any idea or suggestion?

Thanks in advance!
Chris

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Old 07-12-2011, 11:25 PM   #2
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Before you open the wall (it may come to that) can you post a good picture? Theres some creative guys here that will have some ideas.

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Old 07-12-2011, 11:52 PM   #3
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fair enough. here comes a picture
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Old 07-13-2011, 12:03 AM   #4
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drain pipe too high for disposal


Any chance the other side of the sink is shallower?


If not, I fear you might be S.O.L.

I see ... . . ... sheetrock repair . . . . . . it's in your future. . . .
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Old 07-13-2011, 12:51 AM   #5
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drain pipe too high for disposal


sink is pretty much fixed...one option I was thinking is to give up this best-rated (but bulky) disposal for a smaller one with a shorted height between the sink and the disposal outlet.
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Old 07-13-2011, 06:11 PM   #6
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drain pipe too high for disposal


Is the sink a double pan? same depth each side? If not, you can buy sinks with a shallow/smaller side. Maybe you could change the sink to one like that and put the disposal on the shallow side. I think i'd be more willing to do that than to tear out the drywall and start re-arranging the plumbing. but that's just me-seems like the lesser of two evils (and the fact that i hate drywall work). Plus-wifey gets a new sink, and while you're at it, get her the faucet of her choice. When mama's happy, everybody is happy.

(sorry Alan, i didn't read your post until after i typed this)

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Old 07-13-2011, 06:28 PM   #7
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drain pipe too high for disposal


If I'm reading this right, your disposal outlet is 1/4" higher? Then what's the problem? A drain should have a quarter inch per foot slope. You're within a foot of the drain coming out of the wall.
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Old 07-13-2011, 06:31 PM   #8
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drain pipe too high for disposal


As Plumber666 said, it may work as is.
Otherwise, I'd cut the drywall and see if you can lower the bit coming out of the wall. Depending on what you may find, it may be easier in the long-run.
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Old 07-13-2011, 07:38 PM   #9
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If you use a solvent weld trap, you can prolly make it.
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Old 07-14-2011, 01:14 AM   #10
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drain pipe too high for disposal


thanks for all the suggestions!!
If 1/4''/ft slope is all needed, it might work as is. Will go ahead and do it.
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Old 07-14-2011, 06:17 AM   #11
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drain pipe too high for disposal


Looks like most of the job is done finish it and see what happens you can always remove the piping and lower it if need be. Go for it.
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Old 07-15-2011, 07:34 AM   #12
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drain pipe too high for disposal


How'd it go?

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