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Thread: How do calculate how much salt I need

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    cezlaw's Avatar
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    How do calculate how much salt I need

    I have a 10,000 gallon IG pool. It is a SWG. According to the manual the level needs to be maintained at 2700 - 3200 ppm. My controllers shows it at 2600 ppm over the last two days. I do I determine how much more salt I need to add?
    17’ by 28’ - 10,600 gallons; IG
    Hayward 60 sqft D.E.
    Hayward 2 Horsepower, 2 Speed
    Goldline Salt system
    Pebble Tech - Pebble sheen (Turtle Bay)
    12" raised pool with 18" raised back beam wall

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    Mod Squad JohnT's Avatar
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    Re: How do calculate how much salt I need

    Go to poolcalculator.com, but I'd recommend you verify the reading with test strips before you add too much.
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    20K Gallon 20X36 Vinyl Inground
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    JasonLion's Avatar
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    Re: How do calculate how much salt I need

    First, you need to pick a target salt level. The salt level tends to drift down slowly over the course of a season because of water replacement from rain and splash out, so it is best to start near the high end of the recommended range. In your case that means 3100 or 3200.

    Then you can plug in the size of your pool, current salt level, and target salt level into my Pool Calculator, see the link in my signature, and it will tell you how many pounds of salt need to be added (40 to 50 lbs).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    cezlaw's Avatar
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    Re: How do calculate how much salt I need

    Quote Originally Posted by JohnT
    Go to poolcalculator.com, but I'd recommend you verify the reading with test strips before you add too much.
    Good idea on the test strips. Didn't know that existed. I can get at any pool supplier I suppose?
    17’ by 28’ - 10,600 gallons; IG
    Hayward 60 sqft D.E.
    Hayward 2 Horsepower, 2 Speed
    Goldline Salt system
    Pebble Tech - Pebble sheen (Turtle Bay)
    12" raised pool with 18" raised back beam wall

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    Butterfly's Avatar
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    Re: How do calculate how much salt I need

    Pretty sure AquaChek salt strips are a favorite around here.

    If you can't find them locally, check with Dave (duraleigh) at TF Test Kits (link in my sig & on home page).
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    Re: How do calculate how much salt I need

    Run your goldline system at 3200 as opposed to the lower end of the scale. You might find this thread useful also
    water-balance-tips-for-a-swg-t3663.html

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    cezlaw's Avatar
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    Re: How do calculate how much salt I need

    Quote Originally Posted by Butterfly
    Pretty sure AquaChek salt strips are a favorite around here.

    If you can't find them locally, check with Dave (duraleigh) at TF Test Kits (link in my sig & on home page).

    Thanks so much for the help.
    17’ by 28’ - 10,600 gallons; IG
    Hayward 60 sqft D.E.
    Hayward 2 Horsepower, 2 Speed
    Goldline Salt system
    Pebble Tech - Pebble sheen (Turtle Bay)
    12" raised pool with 18" raised back beam wall

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