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    Calcium scale and negative CSI in fiberglass pools

    Hi seribus, I'll be driving through Spring Lake on Thursday. I'll wave as we drive through. We don't close our pool in the winter, however I do see the specks of blue gelcoat in our vacuums. Rachal asked me if I had tried Jack's Magic and I said I did with no change. I then told her that...
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    Calcium scale and negative CSI in fiberglass pools

    Hi seribus, Sorry, I didn't get notification of this update. I hope you survived the hurricane OK. We had to dump the pool 3 times. We just got the rain and a little bit of wind, but so lucky compared to the rest of the state. I finally heard from someone today after getting in contact with Cool...
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    Calcium scale and negative CSI in fiberglass pools

    Hi seribus, I'm so glad your issue is going to be resolved too! I'd rather wait for the off season to have it fixed since we swim every day, but when they come a calling, we're having it done. She said to give them through the end of the month, so I won't contact them until August to see where...
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    Calcium scale and negative CSI in fiberglass pools

    Hi seribus, We ended up going to the College World Series at the last minute and had company through the 4th so I haven't gotten a chance to work on this issue until today. I hadn't gotten a call back from Tallman, so I called them. They asked me to send them some pictures and that they were...
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    Calcium scale and negative CSI in fiberglass pools

    I don't think Cool Pools packed well beneath our pool. We can stomp our foot and hear that it's hollow. I'm not sure if this is normal, but it seems like it wouldn't be. They also talked us into travertine tile coping. It has completely cracked and is crumbling. We had a concrete overlay guy out...
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    Calcium scale and negative CSI in fiberglass pools

    I've tried full strength muriatic acid, ascorbic acid, magic eraser, 3m Scotch Brite scouring pad, all of Jack's Magic stain id tests, Jack's Magic #1 with the purple stuff in whole pool and now double strength Scaletec. Nothing, so far, has worked except sandpaper. I'm open to any other...
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    Calcium scale and negative CSI in fiberglass pools

    Hi Pat, I'm really not looking forward to what you are doing. It looks like a massive job! I stopped by Lowes to pick up some 600 grit wet/dry sandpaper today to see what it does in a small spot but haven't tried it yet. Is there any risk to the gelcoat by sanding with 600 grit sandpaper? If...
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    Calcium scale and negative CSI in fiberglass pools

    Hi seribus, I'm with you on the calcium. Now thinking it's oxidation. Is yours smooth or rough? Ours is smooth which makes me think oxidation, however nothing comes off on the hand. Have to use sandpaper as well. We bought from Cool Pools. No help. I tried Jack's Magic and it did nothing. I'm...
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    Calcium scale and negative CSI in fiberglass pools

    Hi seribus, It sounds like I have a similar situation as you, but I can't figure out what's causing it. Our installations are almost identical. I have had no success with the pool installer so I'm working with a local pool company. In one of your posts you said you can see it at the curves...