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Thread: sand in AG pool from a dough boy filter

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    sand in AG pool from a dough boy filter

    hello this is my first time posting so ill try to get it right for everyone heres the problem i have i have a 21 foot AG and my filter is blowing sand back into the pool it is a dough boy model # 0 1701 013 if that helps
    it only dose it when we start it up or after vacuuming and only dose it for 10 to 15 seconds or so but you can see it blowing in so its a bit of sand i do backwash and rinse after like i was told but it has not helped at all
    I've took the top off and removed all the sand but im not all that sure what I'm looking at just a pipe and it gose down into a plastic compartment i guess you would call it i do intend to replace the gasket on the top as it was old and ugly if anyone can help with some suggestions that would be awesome
    thanks a ton

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    linen's Avatar
    Join Date
    Jul 2010
    Twin Cities, MN

    Re: sand in AG pool from a dough boy filter

    Welcome to tfp, mikew21

    I am not too familiar with doughboy filters, but with most sand filters, the first thing to check is the multiport gasket, if it is worn it needs to be replaced.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    cramar's Avatar
    Join Date
    Nov 2010
    Sault Ontario

    Re: sand in AG pool from a dough boy filter

    I had a similar problem due to backwashing when the filter didn't need backwashing, another member suggested this and sure enough that seemed to be the problem.
    20' X 54" Sharkline Matrix Resin AGP, 9400 Gallons, Sta-Rite 1 HP Dynamo Pump, 150 lb Pentair Sand Filter, Gorilla Pad,
    Foam Cove, Taylor K-2006 kit, BBB method, 8'X20' Fafco Sunsaver Hard Plumb, DIY Fountain, Margarittaville Fiji

    My Build: one-man-one-pool-and-one-deck-agp-pics-t37172.html
    My Build 'To-Do' List for other DIY'ers: my-pool-build-list-t40249.html?hilit=list

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