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Thread: Filter lid must be EXTREMELY tight to avoid air leak

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    Join Date
    Aug 2016
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    Filter lid must be EXTREMELY tight to avoid air leak

    We have an Anthony Pools pump/filter. It is cast iron, at least 10 years old, probably MUCH older. It is the model that takes the O-19 ring. It has two "T" shaped screws which hold the lid on.

    I need to put the screws in VERY tight. If not, I can hear that air is getting in, actually pretty much everything sounds different if it is not tight. By tight I mean I need to one hand as a ratchet and then use the other arm to pull in my elbow to get enough torque. It is beyond my physical strength to break the screw, but this level of effort definitely causes me physical harm.

    We have tried a new O-ring and also an O-ring with a toilet gasket. Neither improved the situation.

    Is there an easier way to get a good seal? And is there an aftermarket see-through lid that I could swap in? That would improve our ability to diagnose air leaks.

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    borjis's Avatar
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    Aug 2014
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    Re: Filter lid must be EXTREMELY tight to avoid air leak

    Probably closer to 30+ years old...or more.

    I've seen a few of these older metal pumps and those that had them, when
    a problem came up, just better to replace it.

    You should replace the entire pump if you can with something new.
    You may be bandaiding this pump until you do.
    16x32 IG Vinyl, 13,000 Gals. Hayward S-244T sand filter, SP2810X15 pump
    (1.5 HP motor) Raypak PR266AEN (266k btu) gas heater. TF-100 Test Kit.
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    Mod Squad pooldv's Avatar
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    Re: Filter lid must be EXTREMELY tight to avoid air leak

    Use some silicone plumber's grease on the o-ring to help the seal.
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