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Great Water Softener Calculators

  • Water Softener Selection Calculator
  • Water Softener Capacity Calculator

    Expected Water softener capacity with different salt settings

    When setting up your water softener you usually have a choice of salt usage settings. The higher the salt setting the more "powerful" the force is on the water softener resin and therefore it will more completely remove the hard minerals from the water. As you lower the salt setting the force decreases and starts to let more hard minerals pass though the softener.

    Softeners are usually assumed to be set at 15 lbs per cubic foot (ft3). At that setting, your softener will deliver the softest water (<1 p.p.m.). As you lower the salt setting the amount of hardness that can pass though the softener will be higher (2-3 grains) but the amount of gallons water you can run through per pound of salt used to regenerate the softener will increase.

    For instance if we take water with 10 grains of hardness and run it thought a 15 lb regenerated 30K softener, we could expect to get about 3000 gallon or about 200 gallons per pound of salt. If we take the same softener and regenerate it with 6 pounds of salt, then we would make 2000 gallons of slightly hard water or about 333 gallons per pound of salt. For residential application having up to 4 grains of hardness would still be considered soft water. The only time you would use a 15 pound salt setting is for applications requiring less then 1 p.p.m. (1 grain - 17.1 p.p.m.)


    Resin Volume Ft.3

    Salt Usage Setting Per Ft.3

     

    6 lbs.

    8 lbs

    10 lbs

    15 lbs

    1.0

    20,000

    24,000

    27,000

    30,000

    1.5

    30,000

    36,000

    40,500

    45,000

    2.0

    40,000

    48,000

    54,000

    60,000

    2.5

    50,000

    60,000

    67,500

    75,000

    3.0

    60,000

    72,000

    81,000

    90,000

    4.0

    80,000

    96,000

    108,000

    120,000

    5.0

    100,000

    120,000

    135,000

    150,000

    6.0

    120,000

    144,000

    162,000

    180,000

    7.0

    140,000

    168,000

    189,000

    210,000

    8.0

    160,000

    192,000

    216,000

    240,000

    9.0

    180,000

    216,000

    243,000

    270,000

    10.0

    200,000

    240,000

    270,000

    300,000

    12.0

    240,000

    288,000

    324,000

    360,000

    15.0

    300,000

    360,000

    405,000

    450,000

    20.0

    400,000

    480,000

    540,000

    600,000

    25.0

    500,000

    600,000

    675,000

    750,000

    30.0

    600,000

    720,000

    810,000

    900,000

    35.0

    700,000

    840,000

    945,000

    1,050,000

    40.0

    800,000

    960,000

    1,080,000

    1,200,000

    45.0

    900,000

    1,080,000

    1,215,000

    1,350,000

    50.0

    1,000,000

    1,200,000

    1,350,000

    1,500,000

    55.0

    1,100,000

    1,320,000

    1,485,000

    1,650,000

    60.0

    1,200,000

    1,440,000

    1,620,000

    1,800,000

    70.0

    1,400,000

    1,680,000

    1,890,000

    2,100,000




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    11/26/2014 at 8:00:08 AM
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