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        Sewage Ejector Pit Sign In/Join 
        posted
        Sewage ejector pit, on occasion will push water out of washing machine drain trap. Washing machine drain is not connected to ejector pit...but the lines connect via Y prior to entering main drain. Any help is appreciated.
         
        Posts: 2 | Registered: Dec 08, 2013Reply With QuoteReport This Post
        Picture of Frodo
        posted Hide Post
        your ck valve is bad,,,
        a sewage sejecter has a ck valve installed so that the water it pumps up....when the pit is empty. will not come back down due to newtons little apple expariment
        if the ck valve goes out,,,the pump will turn on, pump pit dry, turn off,,,and water runs down the discharge pipe back into the pit,
        while this is going on, you are washing your clothes,,and filling up the pit.
        the excess water has got to go somewhere..pit fills, pipe fills, trap fils, water on the floor
        there are 2 kinds of check valves, and it matters which one you use
        if the pipe the ck valve is installed in is horizonital,,,you gota use a swing check valve if the pipe is on the vertical you will need a spring check valve

        swing ck uses gravity to close the gate and spring ck uses a spring


        https://www.youtube.com/*****?v=vn7bkncf1_E
         
        Posts: 3843 | Location: I live in southern mississippi | Registered: Jun 01, 2008Reply With QuoteReport This Post
        Picture of joecaption
        posted Hide Post
        Got a picture of your plumbing set up?
        Is this a new thing happening in plumbing that's been there a while, or is this a new setup?
        Should be simple enough to check if it's the check valve.
        Remove the cover on the pit, fill with water, when the pump shuts off very little water should run back into the pit.


        joecaption
         
        Posts: 18025 | Location: Hartfield VA | Registered: Jan 31, 2004Reply With QuoteReport This Post
        posted Hide Post
        heck, use the Boondocks Stethoscope and don't even take the cover off the pit. get a big-moose screwdriver, and put the blade on the check valve. start water running so the pump kicks. lean into the handle of the screwdriver so it's against the skull near your "good" ear. if you hear water after the pump shuts off, the valve is leaking.

        the most effort you have to put into this is getting a stepstool or ladder placed, and find the screwdriver under the pile of junk at the corner of the workbench. and no chance of messing up the airtight seal when you put the lid back on the sump.

        This message has been edited. Last edited by: swschrad,


        sig: if this is a new economy, how come they still want my old-fashioned money?
         
        Posts: 5714 | Location: North Burbs, MN | Registered: Mar 14, 2007Reply With QuoteReport This Post
        posted Hide Post
        Thanks for the reply. When the ejector pumps, water will back up (on occasion) back through the washing machine drain trap. Seemingly due to pressure. While the wahing machine does not empty into the sewer ejector pit, the drain line does connect to the sewer ejector line, they meet above the main drain.

         
        Posts: 2 | Registered: Dec 08, 2013Reply With QuoteReport This Post
        posted Hide Post
        gut reaction is you have too much pump for that line. pretty low head pressure against that pump. somebody like Frodo would know what to do about that. I'm not sure putting a restriction in the pump line (going one pipe size smaller with reducers for a little bit) is kosher.

        is that the washer right next to the ejector? the solution may well be to move the laundry area further away.

        This message has been edited. Last edited by: swschrad,


        sig: if this is a new economy, how come they still want my old-fashioned money?
         
        Posts: 5714 | Location: North Burbs, MN | Registered: Mar 14, 2007Reply With QuoteReport This Post
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