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Thread: Can anyone tell me what this cap is?

  1. Back To Top    #1

    Join Date
    Oct 2013
    Dallas, tx

    Can anyone tell me what this cap is?

    It is part of the main drain. When I took the dust cover off, I see the cover (attached pic). Below that is a screen to catch debris. Below that is a single line that is connected to the drain. The previous owners dropped a plug at the bottom but didn't screw it in. I took the plug out and closed everything up. When I have the handy valve on half skimmer and drain, tons of air get into the pump. I'm thinking the cover doesn't have a good seal and may be leaking air. Any thoughts?
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  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    San Dimas, CA (LA County)

    Re: Can anyone tell me what this cap is?

    I think you're right. There should be some kind of gasket or O-ring in there.
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