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Old 01-31-2015, 03:28 PM   #1
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Lowering kitchen drain?


Probably a typical rehab scenario: I am installing new cabs with a deeper undermount sink. the drain height is at 18", and I estimate the output of garbage disposal closer to 14-15".

The drain goes into the wall, and has it's reduced vent going up but bends sideways to meet up main stack. Looks like I would have to cut the main stack and install a lower Sanitary T using Fernco rubber unions.

The new cabinet is a 36 and the center is slight offset by about 6 inches but it seems like the P strap and garbage disposal output can be twisted to get it the reach the drain where it come out, so I am not looking to shift the drain left or right, just need to lower it 3-4"

This is a simple single sink drain/GD setup.


Anything wrong with my approach?




Last edited by mycorrado; 01-31-2015 at 03:39 PM.
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Old 01-31-2015, 04:17 PM   #2
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I think you're on the right track. But I'd use PVC repair couplings instead of ferncos- much sturdier and code compliant
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Old 01-31-2015, 05:30 PM   #3
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yep your on the right track...agree with E don't use ferncos use repair cupplings they don't have the stop in them easy to work with ...
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Old 01-31-2015, 06:01 PM   #4
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Ah, ok Thanks!

The only ones I saw had a stop in the middle.
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Old 01-31-2015, 06:11 PM   #5
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Quote:
Originally Posted by mycorrado View Post
Ah, ok Thanks!

The only ones I saw had a stop in the middle.
thats ok too just harder to work with if you don't have any movement...but your good you can do it
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