(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 6 of 6

Thread: Why should dishwasher drain go to disposal inlet?

  1. #1
    DIY Junior Member dayster's Avatar
    Join Date
    Jun 2007
    Location
    Vancouver, BC
    Posts
    20

    Default Why should dishwasher drain go to disposal inlet?



    In a double sink situation where 1 sink has a garbage disposal, I have seen it stated that the dishwasher drain "must" be hooked into the inlet on the disposal provided for this purpose. Rather than to the other sink tailpiece.

    Any reason why?
    Last edited by Terry; 06-20-2007 at 06:22 PM.

  2. #2
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    Location
    San Diego
    Posts
    9,001

    Default

    I don't know that it is mandatory.....it's just convenient.

  3. #3
    Master Plumber Dunbar Plumbing's Avatar
    Join Date
    Apr 2005
    Location
    Northern Kentucky/Greater Cincinnati Area
    Posts
    2,943

    Default

    Quote Originally Posted by dayster
    In a double sink situation where 1 sink has a garbage disposal, I have seen it stated that the dishwasher drain "must" be hooked into the inlet on the disposal provided for this purpose. Rather than to the other sink tailpiece.

    Any reason why?

    The benefit is worthwhile as the periodic use of the dishwasher helps to keep that grinding chamber free moving, along with the benefit of the sound dampening rubber diaphragm. Installing into a tapped tailpiece will produce a louder sound when the dishwasher is operating.

    Those who know safety, use Air Gaps to that dishwasher.
    Read what the end of this sentence means.

  4. #4
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,605

    Default Dw

    One benefit is that any food particles washed out of the dishwasher will be ground up by the disposer instead of going full sized down the drain. But otherwise you can run it to either spot.

  5. #5
    DIY Junior Member dayster's Avatar
    Join Date
    Jun 2007
    Location
    Vancouver, BC
    Posts
    20

    Default

    Thanks guys!

  6. #6
    Licensed Grump GrumpyPlumber's Avatar
    Join Date
    Jun 2007
    Location
    Licensed Grump
    Posts
    1,404

    Default

    Quote Originally Posted by dayster


    In a double sink situation where 1 sink has a garbage disposal, I have seen it stated that the dishwasher drain "must" be hooked into the inlet on the disposal provided for this purpose. Rather than to the other sink tailpiece.

    Any reason why?

    Food particals and grease...better to have them discharge into a disposal than a plain tailpiece when available....sorry "rugged" fella, I forgot...be sure to put a cleanout thingy there too.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •