Swap Disposer on dual basin sink

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by alexh, Jan 18, 2014.

  1. alexh

    alexh New Member

    Messages:
    12
    Location:
    CA
    Hi all,

    I have a dual basin Kohler sink and the counter workspace is on the side w/o disposer. That plus the fact that the main drain is perfectly horizontal for a bout 3' means that it stops up regularly. I have cleared it so many times I can do it in about 10 mins but it's still a royal pain.

    Obviously Kohler intended the disposer be on the right side (small basin) since the hole for the dishwasher air gap is on that side but nothing is preventing me from putting the disposer on the left side?
    Just wanted to be sure before I take it apart. The dishwasher air gap to disposer drain will be a long run but I don't see that this will be a problem.

    I may be able to improve the slope on the main drain slightly but I'm thinking of adding a cleanout adapter. I'll still have to catch the water in a pan but at least I won't have to take apart the trap.

    Thanks

    Attached Files:

  2. jim mills

    jim mills New Member

    Messages:
    141
    Location:
    nebraska
    I don't see any problem with changing it out at all. Looks like you could shorten that discharge elbow on the disposer and the tail piece on the other sink an inch or so and gain a little height.
  3. Jerome2877

    Jerome2877 In the Trades

    Messages:
    397
    Location:
    BC
    How old is the garburator? The blades become dull over time and can cause blockages. If its anywhere near 6 or 7 years old I would recommend a new one.
  4. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,251
    Location:
    Cave Creek, Arizona
    There is NOTHING in your photo that gives any indication that changing the disposer's location will have anything to do with preventing stoppages. You have something else causing them. "Perfectly horizontal for 3 feet" does NOT cause stoppages.
  5. Terry

    Terry Administrator Staff Member

    Messages:
    14,763
    Location:
    Bothell, Washington
    Replace that dinosaur of a disposer.
    When they get old, they no longer chip up the food and stoppages become a daily problem.

    I like the Insinkerator Pro series.
    Spend a little more on a nice disposer and less on plumbers.


    And yes, you have plenty of room there to change sides.



    The PRO Insinkerators we sell and install have longer warranties than the Evolution Series
    Last edited: Jul 19, 2014 at 3:11 PM
  6. dj2

    dj2 Member

    Messages:
    399
    Location:
    California
    The only "disadvantage" is that the right side sink is not as deep as the left side.
  7. alexh

    alexh New Member

    Messages:
    12
    Location:
    CA
    IMG_0721.jpg

    Here is the main drain from sink to exterior cleanout. The stoppage is always in this section. The stoppages are really easy to clear - I used to use a coat hanger.

    I think a new disposal on the work side will prevent lager debris from going down the drain.
  8. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,251
    Location:
    Cave Creek, Arizona
    There is also nothing about that section which should cause a stoppage, unless your disposer is worn out and you are NOT using adequate water flow.
  9. jim mills

    jim mills New Member

    Messages:
    141
    Location:
    nebraska
    Looks to be going up hill to me
  10. glazer1972

    glazer1972 New Member

    Messages:
    7
    Location:
    East Texas
    Insinkerator Pro 1100xl would like solve your problem. It does a much better job of grinding the food up.
  11. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,251
    Location:
    Cave Creek, Arizona
    The "Pro" series is advertised as "Only available to professional plumbers". So it will probably be a few months before HD has it, just like the "plumber only" Evolution series they now sell. If the pipe is going "downhill", raise it, the opening looks large enough. Plastic pipe flexes very easily.
    Last edited by a moderator: Mar 4, 2014
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