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Thread: Is this scale? Best way to remove?

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    Is this scale? Best way to remove?

    Our pool is just over a month old. Finish is River Rok. Water is salt. CH is just under 200 and pH is kept below 8 with usually every 3 day MA additions.
    I'm getting a white scale around a few of the in floor jets. It's like the high velocity water is depositing scale on the rough edges of he ROK. The PB came back and drained the pool and acid washed again to address these areas and several splotchy areas where the "cream" was heavy around the ROK. It seemed to go away, but came back very quickly.
    I want the PB out of here like yesterday, so I am very reluctant to have them address the issue. I'm contemplating an under water acid applicator or a pumice stone?

    IMG_4598.jpgIMG_4597.jpg
    14K, River Rok, Paramount In Floor, 2 HP Jandy Stealth 2 speed, 60 sq/ft DE, Aqualink RS, SWG, Taylor K-2006

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    needsajet's Avatar
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    Re: Is this scale? Best way to remove?


    Please indicate which test kit you have when you do. Thanks and nice to meet you via TFP
    12k IG salt; glass beads in plaster; K-2006C, K-1766, CCL, and Aussie 4in1 (HTH); Pentair Eco800 1.2HP VS; Zodiac SWC 1.3 lb/day (25 g/hr); 25" filter recycled glass; OKU solar panels; 1/2 HP solar pump; Rebel (Warrior) pool cleaner; FlowViz; prior pool AG 10k | Read Before Posting to get the best possible advice | ... and this helped me a lot!: TFPC for Beginners

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    Re: Is this scale? Best way to remove?

    Test results, please.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Mod Squad pooldv's Avatar
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    Re: Is this scale? Best way to remove?

    Scale is very unlikely. Test results will help. Have a look to see if this helps determine the issue
    Diagnosing Pool Plaster Problems
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    Re: Is this scale? Best way to remove?

    Tested with Taylor K-2006
    FC 3.0-5.0
    pH is fluctuating between 7.4-8.0
    TA 80
    CH 190
    CYA 70
    Salt 3000
    14K, River Rok, Paramount In Floor, 2 HP Jandy Stealth 2 speed, 60 sq/ft DE, Aqualink RS, SWG, Taylor K-2006

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    Re: Is this scale? Best way to remove?

    The PB came back today and scrubbed the white areas with a small 5" SS pool brush and the white came off with a bit of elbow grease. We will see if it comes back.
    14K, River Rok, Paramount In Floor, 2 HP Jandy Stealth 2 speed, 60 sq/ft DE, Aqualink RS, SWG, Taylor K-2006

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    Re: Is this scale? Best way to remove?

    Looks like effloresence. You can almost see it circuling the floor return.

    - - - Updated - - -

    Efflorescence - Causes,*Removal, and Prevention

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    Re: Is this scale? Best way to remove?

    Yes, it definitely was in the 12, 3, 6, & 9 positions on 3 of the 18 heads. Salt had not been added the first time it appeared. I was suspicious of CYA since it seemed to appear shortly after adding it. It was rough and felt very much like salt. It was on the surface of the Rok finish.
    Thanks for the link!

    Quote Originally Posted by kadavis View Post
    Looks like effloresence. You can almost see it circuling the floor return.

    - - - Updated - - -

    Efflorescence - Causes,*Removal, and Prevention
    14K, River Rok, Paramount In Floor, 2 HP Jandy Stealth 2 speed, 60 sq/ft DE, Aqualink RS, SWG, Taylor K-2006

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