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Thread: Salt reading

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    Join Date
    May 2015
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    Wichita KS
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    Salt reading

    According to my Intex SWG manual, for my pool I needed to add 4 bags of 40lb salt, which I did Sunday night (Morton Solar Salt). I don't see it at the bottom of the pool anymore so I'm assuming it is dissolved as it should be. My pump has been running 24 hours a day right now, and when I measured the salt reading last night with my TF-100 kit it only showed 1200ppm. It had rained a couple of hours prior to testing, so I tested it again this morning and I got 1600ppm.
    Pool math shows that if my starting level was 0, to get to 3400ppm I need about 4 1/2 bags of salt. I am just at a loss as to why my readings are so low. I hate to just dump another 3 bags in there, then have the problem of having too much salt. Is it normal for the salt readings to "creep up"?
    Coleman 18'x48' AGP
    Intex Krystal Clear Sand Filter Pump 2800GPH
    Intex SWG
    **Under Construction** :)

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    Mod Squad pooldv's Avatar
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    Re: Salt reading

    Don't add more salt. Brush the pool to help it dissolve faster and give it another day or two.
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    May 2015
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    Wichita KS
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    Re: Salt reading

    Thanks so much. We got into the pool for the first time tonight, and afterwards I tested everything again and salt was at 3000ppm, exactly where it should be! Thanks to you I didn't go out and put more salt in!
    Coleman 18'x48' AGP
    Intex Krystal Clear Sand Filter Pump 2800GPH
    Intex SWG
    **Under Construction** :)

  4. Back To Top    #4

    Re: Salt reading

    If salt is just dumped in without brushing, it can sit on the bottom of a pool for days even with the pump running. Even as it dissolves, you can get a very concentrated layer of dissloved salt sitting in a layer near the bottom. In some cases, you can actually see the salt layer because it has a different refractive index.

    Brushing helps a lot. A main drain helps. Vacuuming or running a cleaner helps. Pointing a return towards the bottom can also help.

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    Mod Squad jblizzle's Avatar
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    Re: Salt reading

    I add salt by slowly pouring it in while walking around the pool. I find that by the time I make a lap it is mostly dissolved before I even start to brush.

    If you make a pile it will certainly take longer. Now I just let my kids play with the salt when I need to add some. Might try to hold of until next weekend during a birthday party.
    Jason, TFP Moderator
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