Another Water Softener Sizing Help Thread

Discussion in 'Water Softener Forum, Questions and Answers' started by SAS, Apr 29, 2014.

  1. SAS

    SAS Member

    Joined:
    Dec 18, 2004
    Location:
    Connecticut
    Sorry for doing this when I see there are other sizing threads, but I'm struggling a bit to understand what variables do and don't count. Here are the basics:
    Hardness: 25
    Iron: .05
    # of People: 4

    Most on-line calculators tell me to go for a 48,000 grain unit, but a significant minority suggest 64,000. Two dealers whom I called (but who did not do any on-site testing) both insisted that the Fleck 5600 SXT 48,000 grain unit with 1.5 cubic feet of resin was more than sufficient. There is only a $40 difference between the two units, so I don't mind sizing up if it is in any way beneficial. I like the idea of regenerating less frequently, and a couple of times each year we have large family gatherings (4 kids, spouses, 4 grandkids) for about a week each time, so does that mean I should go for the larger softener? Also, I see that I have several tank choices. Let's say I go with the 64K. Should I get a 12 x 48, a 12 X 52, or a Turbinator 10 X 54?

    Advice would be welcome.
     
  2. Reach4

    Reach4 Well-Known Member

    Joined:
    Sep 25, 2013
    Location:
    IL
    12 X 54 would be the popular choice for 2 ft[sup]3[/sup] of resin.
    10" x 54" for 1.5 ft[sup]3[/sup] of resin.
     
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  4. mialynette2003

    mialynette2003 Member

    Joined:
    Nov 24, 2010
    Occupation:
    Owner of SWS Systems WWW.SWSSYSTEM.COM
    Location:
    Ocala, Florida
    First of all, with only .5 ppm iron you don't need a turbulator. Now lets see how the numbers look with a 2 CF. Your compensated hardness would be 30 GPG. With the family members using 65 gallons per person per day (65*30*4 people)= 7800 grains removed per day. 7800*7 days=54600 grains removed per week. With a 2 CF (64K) you would get 40K at the efficiency setting. so 40K-7800=32200/65/30/4= 4.1 days between regens.

    Now lets see how the numbers look with a 1.5 CF. Your compensated hardness would be 30 GPG. With the family members using 65 gallons per person per day (65*30*4 people)= 7800 grains removed per day. 7800*7 days=54600 grains removed per week. With a 1.5 CF (48K) you would get 30K at the efficiency setting. so 30K-7800=22200/65/30/4= 2.8 days between regens.

    I would recommend a 2 CF system.
     
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