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Thread: CSI at -0.1 Pebble Tec is this too low? My LaMotte Tester & Spa issue chemistry?

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    TeamNelson's Avatar
    Join Date
    Feb 2013
    Tucson (Marana) AZ

    CSI at -0.1 Pebble Tec is this too low? My LaMotte Tester & Spa issue chemistry?

    The Pool Calculator selector for Type of Pool "Plaster" ? is this my type for PebbleTec? My CSI says I'm -0.1 is this too low - what should I do?
    My Test results:
    FCL 1.28
    TCL 3.56
    PH 7.5
    ALK 154
    CH 220
    CYA 30

    Currently attached to pool store products & want to quit! (but want to do the right thing in the right order - help please)
    Our LaMotte Tester & store BioGuard "ALEX" analysis can differ in some areas...Is their machine that much more accurate OR are they just trying to sell me more product?
    Pool Store results:
    FCL 3.8
    TCL 3.8
    PH 7.6
    Total ALK 107
    Adj. ALK 94
    TH 270
    CYA 42

    They recently sold me BioGuard Inhibit BackUp - an algae preventative & killer - I didn't know it would FOAM up my spa! as prior they sold me BioGuard Algae All 60 (Treatment & Prevention)
    & the second item said "non-foam" for use w/spa's - we have followed the pool store advice too long.We just got into reading your GREAT forum (hindsight is 20/20).
    What can I do now to get rid of a foaming spa? Are we too far gone? I know we won't go back to this pool store!!! Can anyone please help us quit the pool store and start saving our money and sanity? If we are in the wrong area of Chemistry - or I missed an appropriate area to post - tell us newbies where to put this ( I have been reading here & searching most of my day vs. swimming )
    Any advise is appreciated! Nelson
    12/2012; 16K Gal. IG PebbleTec, Pool w/Spa attached, Pump Sta-Rite IntelliPro 4speed VS 3050 160gpm, Cartridge Filters Sta-Rite S8M150 450SqFt, Pentair IC60 SWCG, Turbo System 20 In Floor PopUp Heads Cleaner, Zodiac Auto Cover, Pentair EasyTouch 8 Controls & Screen Logic Interface w/APP for phone remote access, InterFab Slide, FiberOptic perimeter lites, TestKit TF100!!! The BEST & the Taylor Speed Stir - A MUST HAVE!!!

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: CSI at -0.1 Pebble Tec is this too low? My LaMotte Tester & Spa issue chemistry?

    Welcome to TFP!

    In most cases there isn't any point in even thinking about CSI. If you do want to think about it, CSI between -0.3 and +0.3 is considered perfect, so you are totally fine.

    There is nothing you can do about the foam other than wait it out. It should be gone in less than a week.

    We exist to help people like you, so you have come to the right place!
    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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