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  1. C

    FC loss in hot pool

    How many days should slamming take - for a pool with no visible algae?
  2. C

    FC loss in hot pool

    No, no other chemicals are going into the pool. What about bacteria? Since I was experiencing rapid CYA loss, this article (poolsolutions.com...) led me to believe it was an issue of CYA-eating bacteria. In any case, I will take your advise and maintain slam-level FC throughout the day too...
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    FC loss in hot pool

    The pool has an auto cover. It is completely dark all day. How is algae growing? The water is completely clear, and there are no signs of algae on the walls (no sliminess, etc).
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    FC loss in hot pool

    I have been slamming my pool every night for two weeks now. Every night, I take FC to 10ppm (my CYA is ~25). The next morning, FCF is ~5ppm. The filter runs 24/7. The water is crystal clear and there is no visible algae or sliminess on the walls. FC 5 (this was 10 last night when I...
  5. C

    FC loss in hot pool

    Overnight, in a covered pool with 90 degree water, how much FC loss should one experience? Assume the pool is "clean" (no algae, etc) and chemistry is otherwise ideal?
  6. C

    Beautiful clean pool, but LOSING CYA AND FC

    If it was algae, wouldn't I be able to feel/see it? There's nothing...
  7. C

    Beautiful clean pool, but LOSING CYA AND FC

    14k gallon / in ground / outdoor / auto cover (black) I have been slamming every night. Does algae explain the CYA loss?
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    Beautiful clean pool, but LOSING CYA AND FC

    Thanks! I'm using Taylor. As of this morning... FC 5.5 (this was 10 last night when I shocked it) PH 7.6 TA 90 CYA ~25 (this was >40 a few weeks ago) Temperature 88 degrees
  9. C

    Beautiful clean pool, but LOSING CYA AND FC

    I have a 14k gallon inground, covered pool. The water is crystal clear, and there is no visible algae. However, the pool will not hold chlorine, and I am losing CYA over time (without water changes). Based on this article (poolsolutions.com...), I have been under the belief that some kind...