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 Garbage disposal is lower than main drain
Author: snaggletooth702 (NV)

Someone did a renovation at a rental property and moved the kitchen sink. However, when they moved the drain, they made it too high. Now, the water outlet on the garbage disposal is several inches lower than the drain itself, and water is sitting in the garbage disposal. The only way to get it to exit is by turning the disposal on. Any easy/affordable solutions?

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 Re: Garbage disposal is lower than main drain
Author: HelpMePlumb (FL)

No traps either. You about to buy this place? What other issues are lurking?

What do consider an affordable solution to be?

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 Re: Garbage disposal is lower than main drain
Author: Fixitangel (NC)

Easy? Depends on the skill set and tool chest of the person fixing it. Affordable?
Kind of a moot point, 'cuz what you have is against code and doesn't work right anyway.
There's no trap. Pull the sink cabinet out and open the wall to lower the drain stub, or cut an access panel thru the back of cabinet and wall to get to the vertical drain pipe. If there is access on the other side of the wall, it may be possible to cut the sheetrock, make the drain mods and cover it with an access panel or sheetrock patch. Good Luck.



Edited 1 times.

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 Re: Garbage disposal is lower than main drain
Author: North Carolina Plumber (NC)

I'd poke around that pipe coming out of the wall and see if the vent goes up, or if the drain is armed over(most likely). Maybe you could drop the drain down thru the bottom of the cabinet? If not you'll need to lower the drain in the wall somehow.

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 Re: Garbage disposal is lower than main drain
Author: waukeshaplumbing (WI)

open the wall up and move the drain down

all that piping under the sink is wrong...start over

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 Re: Garbage disposal is lower than main drain
Author: LemonPlumber (FL)

see if you can from the attic above locate the stacks position.Sometimes you can abandon and reroute,the branch arm. Without destroying all cabinet backs to lower this complete failure!!!

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 Re: Garbage disposal is lower than main drain
Author: Fixitangel (NC)

Good call, NC. I didn't think about routing it down thru the cabinet and capping the stub out. (If he has access underneath)

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 Re: Garbage disposal is lower than main drain
Author: Wheelchair (IL)

Your question is difficult to address without knowing your personal involvement. Do you own the Apartment? Are you planning on moving into the building? Are you assigned to perform repairs?
Per your picture the original work done was wrong and violates several plumbing codes. As suggested by another... if you do own this building or planning on purchasing it, what else is going on that you haven't seen.

The work should be performed by a licensed plumber who knows the codes and can perform the job in the least amount of time.
Best Wishes

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 Re: Garbage disposal is lower than main drain
Author: hj (AZ)

The disposer and pipe to the sink drain are the "trap". This is a complete "abortion" installed by a homeowner or handyman who believes plumbing is too easy to need a plumber. There is absolutely NO WAY to make this drain proper without major remodeling, AND the disposer will fail very rapidly because it is always full of water. The water should also come up in the sink every time you turn the disposer on.



Edited 1 times.

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 Re: Garbage disposal is lower than main drain
Author: hj (AZ)

quote; Easy? Depends on the skill set and tool chest of the person fixing it

I guess it depends on your definition of "easy", but there is NO "skill set or tool chest" that will make this an EASY correction.

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 Re: Garbage disposal is lower than main drain
Author: hj (AZ)

quote; I didn't think about routing it down thru the cabinet and capping the stub out

Tell him that and he will end up with an "S" trap.

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 Re: Garbage disposal is lower than main drain
Author: bernabeu (SC)

the dishwasher drain hose is also always in the 'wet trap zone'

when the little rubber 'flapper check' fails the discharge of the g/d will be forced into the dishwasher

as hj has stated .... ABORTION

needs a TOTAL REDO ... ?by an actual plumber?

==============================================

"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

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 Re: Garbage disposal is lower than main drain
Author: hj (AZ)

Actually, it will not have to be "forced" into the dishwasher, because gravity and siphoning will send the water there by itself.

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 Re: Garbage disposal is lower than main drain
Author: bernabeu (SC)

smiling smiley

gravity .... what a law

add centrifugal force / kinetic energy (imparted to water/scrap 'slurry') when g/d operating

smiling smiley

==============================================

"Measure Twice & Cut Once" - Retired U.A. Local 1 & 638

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 Re: Garbage disposal is lower than main drain
Author: LemonPlumber (FL)

BERN?you posted smiley.a frown or disable wave would have been more appropriate.Tear the whole fricken thing up and ask a plumber to look at the pipes first, next time.LOL.ugly/LOL

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 Re: Garbage disposal is lower than main drain
Author: Pacifichellcat (CA)

What about a sump pump or in line pump to move the waste water from the disposal to the higher mounted drain pipe?

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