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Thread: Leaking Hayward Sand filter

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    May 2013
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    Leaking Hayward Sand filter

    I just built a used Doughboy AGP in my back yard. Yesterday I managed to get the skimmer and return cut into the liner and I hooked up the pump and sand filter. The sand filter is older, I would say it's from the mid to late 90's. It's a Hayward, but I forgot to check the exact model (it holds 130 lbs. of sand and the valve in on the top). The main body of the filter is two halves, top and bottom, that are joined at a flange with roughly 20 nuts and bolts. This seam is leaking like crazy! I tried making the bolts tighter, it doesn't seem to help. Do I need to replace the O-ring inside of the flange? Is there some sealant I should have put on the o-ring?

    Thanks!
    Jeremy
    18 x 34 Doughboy AGP
    Hayward sand filter(need to look up the model #)
    1 HP Hayward pump(need to find the model on that too!)

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    duraleigh's Avatar
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    Re: Leaking Hayward Sand filter

    Try first to carefully re-seat the O-ring....it must be perfect. If it doesn't fit, you could try some O-ring lubricant but you may well need a new O-ring.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Leaking Hayward Sand filter

    Quote Originally Posted by duraleigh
    Try first to carefully re-seat the O-ring....it must be perfect. If it doesn't fit, you could try some O-ring lubricant but you may well need a new O-ring.
    What should I use for o-ring lubricant? Is there a specific product for this? Maybe just some lithium grease or vaseline?
    18 x 34 Doughboy AGP
    Hayward sand filter(need to look up the model #)
    1 HP Hayward pump(need to find the model on that too!)

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    Mod Squad woodyp's Avatar
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    East Texas
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    Re: Leaking Hayward Sand filter

    Do NOT use vaseline on a rubber gasket!
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

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    steinholder's Avatar
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    Mar 2012
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    Re: Leaking Hayward Sand filter

    Use Silicone grease. You can find it at the hardware stores, also called plumbers grease.
    22'x52" AG Ultra Frame Intex - 12,500 gal (47K liter)
    Manual Liquid Chlorine - 1HP 100# Hayward sand filter
    Lots of sun, trees, pollen & wind - 50ppm Borates
    4nd season grateful TFP fan

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    Join Date
    May 2013
    Location
    Hudsonville, MI
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    Re: Leaking Hayward Sand filter

    Well, I fixed the leaking filter. It turns out the O-ring was out of it's groove and it got snagged by one of the bolts. I had another O-ring, so I swapped them and I was extra careful putting it together. No more leaks! Small victories!
    18 x 34 Doughboy AGP
    Hayward sand filter(need to look up the model #)
    1 HP Hayward pump(need to find the model on that too!)

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