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Thread: Salt Level Keeps Dropping

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    Join Date
    Mar 2010
    Location
    Fresno, CA
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    14

    Salt Level Keeps Dropping

    According to my SWG, the salt level in my pool is dropping about 200 to 300 ppm each month. The pool isn't used very often. I assume this can mean 1 of 2 things. First, the cell itself is getting near the end of its life. Second, the pool has a leak somewhere. The fact that my cell is less than a year old makes me think that it's the second explanation.

    However, I'm not noticing any wet areas around the pool equipment. The rest of the pool area is covered in concrete, so I can't really tell. I also have sandy soil that drains quickly. Is there any way to tell if my pool is leaking? If I'm not seeing water, is it something to worry about?
    35k / Hayward Swim Clear C4025 Cartridge Filter / Aqua Rite SWG / In ground / Pebble Tec

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    Lana537's Avatar
    Join Date
    May 2009
    Location
    The Triangle, NC
    Posts
    242

    Re: Salt Level Keeps Dropping

    What has your CYA and your CH been doing? Do you have test strips to test your salt level besides reading what the SWCG says?

    Lana
    23,600 gallon, refurbished 1960's inground concrete, Jandy sand filter w Jandy 2 hp variable speed pump, Pool Pilot Digital SWCG+Chemtrol 2100+CO2 tank; PebbleTec White Pearl with 10% Cobalt Blue Dark Beadcrete by Olympic Pool Plastering, Georgia. Taylor K-2006 Test Kit; Aqua Check Salt test; LaMotte borates test, and Jack's Magic Sequest test kit; SparklyPoolitis level: extremely high.

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    Re: Salt Level Keeps Dropping

    Do you have an auto fill? Whats your make-up water per day? If you had a leak you would likely see it in the amount of make-up. If you have an auto fill , turn it off , and watch it a couple of days.
    coloeb,
    20k gal. IG fiberglass/plaster rectangle 32'x16'
    Hayward Superpump 3/4 H.P. primary Hayward model 5060 Booster Pump
    Hayward Pro Series High Rate Sand Filter
    Pentair Model 320 automatic Chlorine/bromine in-line feeder

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    Join Date
    Mar 2010
    Location
    Fresno, CA
    Posts
    14

    Re: Salt Level Keeps Dropping

    Quote Originally Posted by Lana537
    What has your CYA and your CH been doing? Do you have test strips to test your salt level besides reading what the SWCG says?

    Lana
    Both were low. I used a test strip a few weeks ago and it showed salt levels about 300 ppm higher than the SWG. However, the chlorine levels improved when I added more salt.

    Quote Originally Posted by coloeb
    Do you have an auto fill? Whats your make-up water per day? If you had a leak you would likely see it in the amount of make-up. If you have an auto fill , turn it off , and watch it a couple of days.
    I have an auto fill. How do I turn it off?
    35k / Hayward Swim Clear C4025 Cartridge Filter / Aqua Rite SWG / In ground / Pebble Tec

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    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Salt Level Keeps Dropping

    There must be a valve somewhere to turn off the autofill. It might be near the equipment pad, or by the house, or in the house, it's hard to say.
    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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