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Thread: Balance Tank Question

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    Join Date
    Feb 2013
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    Balance Tank Question

    I am in the process of designing, building a 15K gal, rectangular salt pool. I have been working on the piping schematic and have come up with the drawing below. This will be a 'overflow edge' type pool on all sides. My question is in regard to the balance tank. It seems, from my research that the water from the mains can either go to the balance tank or to the pump, but I cannot find any answers as to which is preferable or any reasons why one way is better than the other.
    [attachment=0:1eocwf23]Pool pipe schematic.pdf[/attachment:1eocwf23]
    Attached Files Attached Files
    Pool not built yet: 15K gal, IG Concrete/Tile, Perimeter Edge, Balance Tank, Diamond Kleen Filter, SWG, spec'd so far.

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    JasonLion's Avatar
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    Re: Balance Tank Question

    Generally all drain & overflow water goes to the balance tank, and the pump draws water from the tank.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Balance Tank Question

    Quote Originally Posted by JasonLion
    Generally all drain & overflow water goes to the balance tank, and the pump draws water from the tank.
    OK, so then to maintain a 75% to 25% ratio of water draw between overflow and main drain I would need to have a ball valve/flow meter in the line from the MD to the BT, correct?
    Pool not built yet: 15K gal, IG Concrete/Tile, Perimeter Edge, Balance Tank, Diamond Kleen Filter, SWG, spec'd so far.

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    JasonLion's Avatar
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    May 2007
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    Re: Balance Tank Question

    You can't maintain a 75% to 25% ratio, you just design the system to average somewhere around there. Generally the overflow goes directly into the tank, while the main drain is gated by a float valve (shut off when the tank is full).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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