Haven't lost any FC overnight lately. I have a puck going
to get cya up Anyways. Took cover off today for a swim session
kids been in as out of pool for 3 hours. Cover been off for 5 hours.
FC went from just over 4 to 2. Is that expected ?
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I know contaminants and sun will destroy FC and sun fast with no CYA
Just wondering if I'm in the normal range. Thanks.