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Thread: laying the groundwork for our new pool

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    Join Date
    Jun 2015
    Magalia CA

    laying the groundwork for our new pool

    Hi everyone! New to this forum and site, and am enjoying the information I am seeing here. My question is about foundation. Our backyard is definitely not level, and I know the most important part of putting up a pool is to make sure the base is level, so I have dug into (on the highest side 13') the ground instead of building up. It has been back-breaking work, but successful. I only have a small amount left to level. So ,our base is solid, we have a very hard red clay here in north eastern California, but I am unsure on whether to cover this with a small layer of sand, or to buy some polystyrene foam sheets to lay down. The other question is about pavers to brace the legs, do I need them, and if I do, how do incorporate them with either the sand layer or polystyrene? Thanks in advance!!
    Intex 15' round by 48" AGP
    Magalia, CA

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: laying the groundwork for our new pool

    Welcome to the forum.

    My thinking would be to add both sand and then poly. It would take very little sand to give you an even, solid surface for the poly to sit on.

    Pavers are essentials to distribute the weight. Dig out enough of your current base for each of them so they are flush with the surrounding surface. Again sand will help fill in around them.

    There's really only three components to an above ground dig.....level, level and level!
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Mod Squad kimkats's Avatar
    Join Date
    Jul 2012
    Tallahassee, FL

    Re: laying the groundwork for our new pool

    You have done quite a bit of work already it seems like. Hard work for sure!

    I like the foam sheets just because they are so soft on the feet AND do not cause any wrinkles or divots.

    Some sand would be okay to give your pool a kind of smooth bottom.

    Think about your clay/ground when it rains. Will your legs NOT sink down when it rains? Or slide?

    You will dig down (sorry more digging) so that the paver are level with the ground.

    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    titleistseemore's Avatar
    Join Date
    Jul 2014
    Lodi Ca

    Re: laying the groundwork for our new pool

    Hello fellow Northern Cal Member ...

    Click the link to my build in my signature, a lot of photos and ideas that might help you. Dave is spot on. I did minor leveling with the sand and Kim is correct, I have had pools with no insulation (Just dirt and sand) and now I have the insulation, what a difference. The sand gets you a smooth surface for the insulation (very small amount of sand to do the final leveling) and the insulation is nice to walk on and gives you a great bottom for vacuuming and such ... Good Luck
    Tim Jacobsen Lodi Ca.
    18'x48" Intex Ultra Frame (5700 Gallons)
    TF 100 Test Kit, Speedstir, & Sample Sizer. Liquidator Installed.
    Hayward C550 Cartridge Filter (55 Sq. Ft.), 1HP Powerflo LX Pump, Pool Rover Jr.

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