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Thread: range of salt ppm for swg

  1. Back To Top    #1

    Join Date
    Mar 2013
    Location
    NW GA
    Posts
    69

    range of salt ppm for swg

    Hi all,

    I just bought this house with a pool and the only thing I know about pools comes from your Pool School.
    I ran into the guy that installed the Jandy SWG for our pool last year. He said to keep the salt between 2800-3000ppm. Cool. We went our separate ways. Tonight, I came across the manual in the pile of paperwork previous owner left for us.

    Jandy AquaPure Ei Series.
    Book says goals are
    FC: 1-3ppm (Target Shock level is 5-15ppm)
    CYA: 30-50ppm
    TA: 80-120ppm
    CH: 175 - 400ppm
    pH: 7.4-7.6
    Salt: 4000ppm and <3000ppm will cause cell failure

    So how strict are SWG on salinity? I'm going to aim for the numbers published here (FC of 5, CYA of 70, TA of 60).
    I should have my test kits by tomorrow and I'm sure I'll have questions.
    First things first though, and that's salt according to pool school. What should I be aiming for and how flexible is that number?
    Thanks!
    26900 gal IG Vinyl (18'x36', 3' shallow end and 8' deep end plus steps)
    sand filter and 2.7hp variable speed timer
    Jandy Ei SWG (2yr old)

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: range of salt ppm for swg

    The regular AquaPure (the older one, not the Ei) has an ideal salt level around 3,000. I suspect that is where the installer got the number they told you.

    The Jandy models are the only ones I know of where there is a warning about cell failure at lower salt levels. I don't know how important that really is to their models. Supposedly it also has a low salt warning light, and I would imagine that there isn't any problem as long as the low salt light isn't on.
    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

  3. Back To Top    #3

    Join Date
    Mar 2013
    Location
    NW GA
    Posts
    69

    Re: range of salt ppm for swg

    Thank you!
    That's good to know.
    I've read, too, that too low temps can cause the SWG to register low salt. I'm eager to get my test strips to I can determine how accurate the sensor is.

    Current pool temps are in the upper 60s so I think it should be able to at least function.
    26900 gal IG Vinyl (18'x36', 3' shallow end and 8' deep end plus steps)
    sand filter and 2.7hp variable speed timer
    Jandy Ei SWG (2yr old)

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