Acceptable Double Sink Garbage Disposal/P Trap Config?

[markskovorodko]

Hi all,

I'm a few weeks out from installing a new sink base cabinet, double basin sink, and garbage disposal (to be located on the right sink basin). We just had a plumber rough in new supply and drain lines as we're moving the sink to a new location in the kitchen. The plumber installed new leftward-pointing 45° drain line on the garage disposal side of the sink cabinet, and did so because he recommends the below configuration for the P trap (as far as I understood from my conversation with him):

He also may have meant this configuration below:

In any case, he claimed that locating the P trap closer to the garbage disposal would mean food remnants from the disposal would have less horizontal distance to clear before draining through the P trap.

However, on all the other threads I've found on this forum regarding double sink garbage disposal installs, the below configuration (which I assume is the more traditional configuration) is shown:

All that said, are there any significant issues with Configuration 1 (first two images) or Configuration 2 (third image) that I'm unaware of? The plumber's reasoning seems to make sense but maybe I'm missing something obvious.

Thanks all in advance!

 

[Dj2]

Go with 1 or 2, which are similar.

 

[Sponsor]

 

[markskovorodko]

Go with 1 or 2, which are similar.

Thanks for the help DJ2! Glad to know those are suitable alternatives. Why is it so common that people go with configuration 3 as opposed to 1 or 2? Is it just easier to put together?

 

[Jeff H Young]

yep 1 or 2 typical number 3 the worst

 

[Reach4]

#4 is liked by many. https://terrylove.com/forums/index....er-overflows-into-2nd-sink.90961/#post-654017

 

[Jeff H Young]

number 4 allows for higher rough in. which helps create space under cabinet. however many claims that function not as well as pic 1 or 2 . My experience I don't run into the last one often and have only done a few that way . I keep one of those straight disposer kits in my stock "just in case"

 

[markskovorodko]

Thanks so much Jeff and Reach4! Really appreciate the help and the explanation. Happy new year!

 

[enochian]

How is my design here?

Do I need to redo it?

I'm putting in a 0.75 hp disposal.

 

[Reach4]

The other way is considered better--- use a straight distribution tube out of the disposal to a baffle tee that is set up to make the side an input.

Then go straight down to the trap.