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Thread: Salt system issue

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    Join Date
    Sep 2009
    Location
    Lathrop, California
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    8

    Salt system issue

    I have a Hayward 6020 DE filter 2hp 2 speed pump & Goldline 40k SCGS I installed 2 1.5 weeks ago. I first added to much salt 4400ppm. I drained 2.8ft of pool water not quite 1/2 the pool. I added fresh water to refill pool. The digital read out shows my salt is 3500ppm but the test strips 4120ppm. This si a big discrepancy I think. I had water tested at pool store there test was 3800ppm with same strip as I used. i am draing 2 more feet to get salt to < 3500ppm.
    My question is why is there such a differance in strip to system read out? Can the P4 display be calibrated if test strips are correct. I also have white flakes floating in my pool/spa dose anyone know what this might be. It started a couple days ago. The are soft and break down when rubbed with you fingers. I have other Qs but this will be enough for now. PH is 7.4 and FC is 3.0 or higher TC=1.5 according to pool store.
    Mike T..
    1997 gunite white plaster 24x36 double kidney shape pool with attached spa ~25,000 gallons.
    Hayward PRO DE 6020, Sta-Rite 2 hp two speed pump, P4 Digital Controller, Navigator cleaner.

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    polyvue's Avatar
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    Aug 2009
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    Sacramento, California USA
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    Re: Salt system issue

    Quote Originally Posted by doityourself
    The digital read out shows my salt is 3500ppm but the test strips 4120ppm. This si a big discrepancy I think. I had water tested at pool store there test was 3800ppm with same strip as I used. i am draing 2 more feet to get salt to < 3500ppm.
    My question is why is there such a differance in strip to system read out?
    That's a good question, and one that has been discussed here in other threads (you can locate these discussions by using the Google Search built in to TFP -- see the very bottom of this page).

    I have the same type of SWG you have... my AquaChek test strips also show very high salt level compared to the SWG control (P4, PS-8 should have the same read out.) I don't think there's an meaningful way to calibrate them. Right now, I would recommend relying on the SWG to tell you what your salt level is, but remember that it is SLOW to respond to changes... sometimes by a day or two, so be patient. Others will likely respond to your mysterious flakes.
    14,555 gal in-ground 16'x29' white plaster Pool w/spa (2007); Goldline Aqua Logic AQL-PS-8 control w/Aqua Cell 15 Salt Water Chlorination (SWCG); Hayward TriStar 1HP (1.85 SF) main / 1.5HP (1.60 SF) spa pumps; Hayward Swimclear cart filter C4025, ColorLogic LED lights; Tankless SP-18-4 electric heater; Polaris 280 cleaner.
    __
    View of spiral galaxy in Ursa Major NGC6217 - Hubble Telescope 2009

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    Re: Salt system issue

    I have no SWG so am only parroting what I remember from other threads on the forum.

    I believe the Aqua-chek Salt strips have consistently been more accurate than the units themselves. I do remember an out-of-date situation but, as long as the strips are current, it seems I remember folks saying they are the most accurate.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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