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Thread: PVC Slipnut the same as a ~Compression Adapter~

  1. #1
    DIY Senior Member chefwong's Avatar
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    Default PVC Slipnut the same as a ~Compression Adapter~

    I've looked high and low, and have only found 2" compression couplers.
    I'll take a slip, mipt, anything in a compression adapter. The goal is to created a *sealed* connection between my laundry standpipe and the outlet hose.

    I was thinking of said item *compressed adapter* to create a nice tight seal. I can't seem to find it locally or online. I did find plenty of PVC compression couplings and a MIPT compression adapter. No slip variant...

    I might just grab a DWV adapter at see how *tight* it fits when snugged into the washing machine outlet hose.
    Last edited by chefwong; 08-18-2013 at 01:33 PM.

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    DIY Senior Member Smooky's Avatar
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    Last edited by Terry; 08-18-2013 at 07:17 PM.

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    Jack of all trades DonL's Avatar
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    Without the air gap you may have problems with your washer.

    The pumps and internal hoses are not made to pressure the drain line, when it is closed that way.


    Good luck.
    Theory only works perfect in a vacuum.

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    Forum Admin, Expert Plumber Terry's Avatar
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    This connector has holes that allow air in.
    I've also drilled holes in connectors for that purpose.

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    Moderator & Master Plumber hj's Avatar
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    A "solid connection" between the hose and standpipe will allow the washer to siphon the water back into the tub, which is why they are supposed to be a loose fit in the standpipe.
    Licensed residential and commercial plumber

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    Jack of all trades DonL's Avatar
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    Quote Originally Posted by hj View Post
    A "solid connection" between the hose and standpipe will allow the washer to siphon the water back into the tub, which is why they are supposed to be a loose fit in the standpipe.

    When you get the siphon going your washing machine becomes a sewer sucker.

    Then people wonder why their cloths come out brown.

    I bought a new washer recently and it had one-way valves on the water and drain lines.


    I guess that makes it approved for use in California.
    Theory only works perfect in a vacuum.

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  7. #7
    DIY Senior Member chefwong's Avatar
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    Was familiar with the Fernco.

    However, I wanted to stub this onto the existing laundery box *currently ends with a male thread / metal washer/nut that secures it to the box*.
    I wanted to "secure" the hose more securely with a pinhole drilled in the compression cap for venting. I suppose it's fine just as it.

    The *air* now makes more more sense. Does this AID in drainage. Cause often in commercial setups, I often see tubes that goes into large *round or square openings* that connect to the main DWV. No P trap, just the drain tube flowing into opening

  8. #8
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by chefwong View Post
    The *air* now makes more more sense. Does this AID in drainage. Cause often in commercial setups, I often see tubes that goes into large *round or square openings* that connect to the main DWV. No P trap, just the drain tube flowing into opening

    The air I/O makes draining work properly, But it will not help if your drain is plugged.
    Theory only works perfect in a vacuum.

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  9. #9
    DIY Senior Member chefwong's Avatar
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    The goal of this whole thing was I noticed a bit of overflow that was pooling in the washer standpipe *box*.

    In further testing, it turns out it was the *Hard Plastic U Neck* that was causing it.
    I removed it, and just put the corrugated plastic tube down into the standpipe and Viola, no overflow .
    Go figure...

    It must be draining faster, I hope no placebo effect cause when it now drains, the sound sounds more *viscious*.....aka, higher water inrush/gurgling noise coming from the laundry room...
    Last edited by chefwong; 08-20-2013 at 02:23 PM.

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