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Thread: Scaling?

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    Scaling?

    Does this look like scaling? It's also on the blue plaster as well. It won't brush off. Please help!!!

    Fc 3
    Ta 95
    Ph 7.2 after acid back up to 7.9 by the end of the week
    Ch 230
    Cya 50
    Salt 3000
    Phosphates 100 per leslies test
    18,000 gal ig salt pool krystalkrete plaster 7x10 raised spa w/ 2 spillovers
    4x20 wet deck, waterfall, 17ft infinity edge, deck jets, nexxus lighting
    Jandy pumps & controls, Aquapalm PDA, 400k heater, Kleen Machine robot
    (6) 4x12 solar panels, clear solar cover

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    Re: Scaling?

    Here is the picture
    Attached Images Attached Images
    18,000 gal ig salt pool krystalkrete plaster 7x10 raised spa w/ 2 spillovers
    4x20 wet deck, waterfall, 17ft infinity edge, deck jets, nexxus lighting
    Jandy pumps & controls, Aquapalm PDA, 400k heater, Kleen Machine robot
    (6) 4x12 solar panels, clear solar cover

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Scaling?

    No, your current test results are not suggestive of scaling problems. With the PH down around 7.2 you are getting close to having etching and pitting, though not quite there yet. Even with the PH up at 7.9, I would not expect any scaling.

    There will almost invariable be some calcium buildup on surfaces above the water line that get splashed regularly. If they get splashed and the water subsequently evaporates, any calcium (and salt) in the water will be left on the surface.
    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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    Re: Scaling?

    So any idea what that would be in the pic or what product I should try to remove it ?
    18,000 gal ig salt pool krystalkrete plaster 7x10 raised spa w/ 2 spillovers
    4x20 wet deck, waterfall, 17ft infinity edge, deck jets, nexxus lighting
    Jandy pumps & controls, Aquapalm PDA, 400k heater, Kleen Machine robot
    (6) 4x12 solar panels, clear solar cover

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    In the Industry

    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    30,084

    Re: Scaling?

    Maybe others can see it, but I can tell nothing from the pic....it's too small.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Join Date
    Mar 2011
    Location
    Houston, Texas
    Posts
    413

    Re: Scaling?

    I'd say be careful and look out for scaling, unless you are very confident in your CH test results. I have the same pH swing that you describe and two pool stores were telling me that my CH was in the mid 300's. When my TF-100 arrived my CH test said it was in the high 700's. I thought my test had to be wrong. Well, I developed scaling even though my average pH was probably around 7.5 or 7.6--it would go up to the high sevens or low eights for short periods of time and then down to 7.2 after I added MA. I plan to drain about half my pool to get my CH in the 400 range and to be careful to never let my pH go above 7.5--ever.

    [edit] And my other test results were/are similar to yours. My problem is a rising CH. We finally got rain today in Houston so it might help a bit.
    9,200 gal. Gunite Luna Quartz French Grey pool with spill over spa, two fountains on tanning ledge (rarely used)
    Pentair Whisperflo 2HP, Pentair CCP Cartridge 420 Sq. Ft., Polaris 280 with booster pump
    Pentair EasyTouch 4, RayPak LoNox 266k Natural Gas heater, Aqua Rite SWCG T Cell 9, Borates, TF-100 test kit

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