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Correct Under Sink Plumbing?

Discussion in 'Garage / Workshop' started by kris77, Apr 13, 2012.

  1. Apr 13, 2012 at 9:13 AM
    #1
    kris77

    kris77 [OP] Born in the Backwoods

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    Short story, My garbage disposal is going bad, so im going to replace it. I'm having the problem now everytime i turn on the disposal, crap comes up in the other bowl of the sink.

    Whats the correct way to plumb a disposal under a sink.

    Mine looks like this now...
    [​IMG]

    Just add a disposal on the left side. I'll try and get a pic tonight.
     
  2. Apr 13, 2012 at 9:23 AM
    #2
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    Not sure if this is the correct way but if I were to add a disposal, I'd make the trap straight under the disposal and the other sink bowl T in below the disposal. Otherwise, The T you have in the center should have something in the middle to direct the water down to the trap so water can't easily pass through the T and come up the other bowl.
     
  3. Apr 13, 2012 at 9:24 AM
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    HomerTaco

    HomerTaco also HomerTaco Vendor

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  4. Apr 13, 2012 at 9:25 AM
    #4
    SnowroxKT

    SnowroxKT Well-Known Member

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    This

    EDIT I forgot how a disposal works :eek: they go out the side, not the bottom, so this no workie.
     
  5. Apr 13, 2012 at 9:26 AM
    #5
    JonnyBb

    JonnyBb I have to return some videotapes

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    [​IMG]
    This is what mine looks like, but drain down instead of back
     
  6. Apr 13, 2012 at 9:33 AM
    #6
    4x4jeep

    4x4jeep Well-Known Member

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    Mines like this too
     
  7. Apr 13, 2012 at 9:45 AM
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    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    Shit, forgot they come out the side :eek:
     
  8. Apr 14, 2012 at 5:22 AM
    #8
    JonnyBb

    JonnyBb I have to return some videotapes

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    Hey OP, I was mistaken. The first pic I posted was similar to what I had in my first house. My current house is set up with a trap off the garbage disposal which goes to a T before the drain. The sink side then has a trap that connects to the other side of the T. It doesn't back up quite as bad.

    photo(3).jpg
     
  9. Apr 14, 2012 at 5:29 AM
    #9
    Rupp1

    Rupp1 "If you can dodge a wrench, you can dodge a ball."

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    Here it is:

    [​IMG]
     
  10. Apr 16, 2012 at 3:18 AM
    #10
    kris77

    kris77 [OP] Born in the Backwoods

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    This makes sense having a 90 attached to the disposal then going over to the straight pipe going down to the trap. Wonder if that "T" is a straight "T" or a directional "T"?
     
  11. Apr 16, 2012 at 11:02 PM
    #11
    El Tano

    El Tano i am the one who knocks

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    Dude, if this is your sink, you need to get the drain hose from the dishwasher higher otherwise the dirty water, food, etc from he disposal can go in the hose.
     
  12. May 7, 2012 at 5:30 PM
    #12
    surfsupl

    surfsupl Well-Known Member

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    Thats a 1st. I have never seen a 4'' line brought up under a sink like that b4?
     
  13. May 30, 2012 at 4:24 PM
    #13
    Gearheadesw

    Gearheadesw must modify

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    What you are looking for is a continious waste. This will connect the disposal to the p-trap for the waste to go down
     
  14. May 30, 2012 at 4:33 PM
    #14
    Deercantseeme

    Deercantseeme Well-Known Member

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    If it is backing up its most likely due to your drain being plugged. As a plumber that would be the first thing I'd check. You'll most likely find that to be the problem.
     

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