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Thread: PH test results drop over 15 seconds?

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    acaciolo's Avatar
    Join Date
    Apr 2008
    Northest PA - Lehigh Valley

    PH test results drop over 15 seconds?

    Hey guys,

    Something strange happened today. I tested my PH using the standard taylor PH drop test (as I always do)....and compared it to my autopilot total control reading.

    Taylor showed the ph higher than the autopilot...and then in about 15 seconds, the taylor color dropped from 7.8 to 7.4 I tested, retested...and every time, the ph in well shaken water in the test tube shows 7.8...and over 15 seconds or so, it drops to 7.4. ( I am getting some new chemicals)

    I just wanted to see if anyone has experienced this. Is it indicative of old chemicals? (mine are about 2 years old)


    Owner of Monogram Custom Pools in NE PA. My Personal Pool - 1000sf gunite pebble pool with 1500 gallon spa/grotto and 500 gallon outdoor spa; Pentair i9 Intellitouch with i10x expansion panel. Screenlogic 2/iPhone
    Intelloflo SVRS main pump, 6 whisperflow pumps 2hp to 3hp, Intellichem system, ic60 salt water cell, Sta rite 400k btu heater, Pentair 120k btu heat pump

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    frustratedpoolmom's Avatar
    Join Date
    May 2007
    SWSuburban Chicago, IL

    Re: PH test results drop over 15 seconds?

    I don't know. Sorry. Hopefully the experts will be able to chime in.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
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