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Thread: DIG-220 Temp/Salt calibration settings

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    Join Date
    Jul 2012
    Nashville, TN

    DIG-220 Temp/Salt calibration settings

    Just installed my DIG-220 and noticed that under the temp and salt calibrations settings were not at 0 from the factory. Temp = +2 and Salt = -14%

    Is it possible the factory tested and calibrated/adjusted settings for ship? The unit really looked new and not a return.

    Temp is off a few degrees from my surface floating thermometer, but I would assume the water temp would be a little different from the surface vs what the DIG-220 is reading through it's sensor in the plumbing.

    DIG-220 reports salt at 3200 or 3300ppm depending when I look at it. I did a K-1766 drop test and came back with 3000ppm. Also did a Aquachek strip test and came back with just barely 2830ppm.
    PoolMath said 22x40lb bags should get me 3000ppm based on 35000gal water. I stopped at 20 bags to check, good thing I did.

    Anyone ever notice their DIG-220 pre-calibrated?

    DIY: 35k gal, IG vinyl True L - Pump=SP3200VSP, SWG=DIG-220, Sand Filter=S360T2

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    TFP Guide

    cowboycasey's Avatar
    Join Date
    Jul 2013
    Fletcher, OK

    Re: DIG-220 Temp/Salt calibration settings

    I am not sure but that seems really close, just watch it and see if it stays close
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
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