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  1. #1
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    Default 1/2" black pipe tied to 4" drain line

    Anyone know what this might be for... 1/2" polyethylene pipe connected a drain line and then runs up into wall somewhere into the laundry room. I am guessing it might be for a drain pan under the washing machine but without a visible trap, sewer gas may enter the home.

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  2. #2
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    Default Re: 1/2" black pipe tied to 4" drain line

    Whatever it is for, it is wrong.

    At no time or place is it OK to drill a hole in the side of of a waste line and jam a flexible hose in it. Just plain wrong. Does not matter what the flexible pipe is servicing.

    "The Code is not a peak to reach but a foundation to build from."

  3. #3
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    Georgetown, KY
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    Default Re: 1/2" black pipe tied to 4" drain line

    AC Coil condensate drain line????

    Erby Crofutt, Georgetown, KY - Read my Blog here: Erby the Central Kentucky Home Inspector B4 U Close Home Inspections www.b4uclose.com www.kentuckyradon.com
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  4. #4
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    Default Re: 1/2" black pipe tied to 4" drain line

    Quote Originally Posted by Erby Crofutt View Post
    AC Coil condensate drain line????
    No, it had its own drain line.


  5. #5
    Anthony Alderman's Avatar
    Anthony Alderman Guest

    Default Re: 1/2" black pipe tied to 4" drain line

    Dish washer drain??


  6. #6
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    Mar 2007
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    Default Re: 1/2" black pipe tied to 4" drain line

    Water softener discharge?


  7. #7
    Eric Spoomonger's Avatar
    Eric Spoomonger Guest

    Default Re: 1/2" black pipe tied to 4" drain line

    Quote Originally Posted by Randall Clark View Post
    Anyone know what this might be for... 1/2" polyethylene pipe connected a drain line and then runs up .... but without a visible trap, sewer gas may enter the home.
    It looks like the tubing goes down before it goes up, so if the liquid is just a trickle the dip is working like a trap.

    A half-inch line won't carry enough water to stop a flood. I am thinking it's a trickle discharge of some sort - water softener, protein skimmer on an aquarium, etc.

    Youj also might want to check the attic to see if it continues up to something catching a roof leak.


  8. #8
    M. Slusar's Avatar
    M. Slusar Guest

    Default Re: 1/2" black pipe tied to 4" drain line

    I see that type of installation commonly in water softener installations. Flush cycle discharge...
    The installers are NOT plumbers and do NOT know code (or care).
    The simply pipe the discharge from the softener to the nearest waste pipe and typically tie in as shown (drill a hole, shove the tubing in and silicone it.).
    Bad install, illegal install, gonna cause problems down the road.


  9. #9
    Thomas Barker's Avatar
    Thomas Barker Guest

    Default Re: 1/2" black pipe tied to 4" drain line

    This is ridiculous to even question a DW drain. Dishwasher drains either have a air gap or a high loop (see inages) that discharges into the kitchen sink drain either through a branch tail piece or a disposal unit.
    Bruce nailed it when he said,
    Whatever it is for, it is wrong.
    At no time or place is it OK to drill a hole in the side of of a waste line and jam a flexible hose in it. Just plain wrong. Does not matter what the flexible pipe is servicing.
    Get somone to repair the sloppy. illegal work the other guy did. And find out what exactly that hose's draining. Good luck, Tom

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