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  1. J

    FC, High CYA, algae and tri-chlor

    Hi. My first post. I have a 22,000 gallon marcite pool, evaporation refill by alkaline well water. I have to add about a gallon of muriatic acid each week. But, I digress. Since the pool was filled, 12 years ago, about 1,000 pounds of tri-chlor tablets have been dissolved in it. Leslie's...