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as this will affect test accuracy
A bubbling action denotes that this product is loosening the scale and dirt
Chemically cleaning the filter is recommended 3 to 4 days after treatment
If placed in a skimmer
Pool Frog PAC 540C (3 pack) @ease Replacement Chlorine Cartridge as this will affect testPool Frog PAC 540C provides pool owners who utilize the Frog XL Pro Chlorinator with a simple, drop in chlorine insert that allows the XL Pro system to slowly and steadily release needed amount of chlorine for maximum effectiveness. PAC 540C gives users a clean alternative to handling messy chlorine tablets or liquids, and when used with the XL Pro system, is completely automated to remove adding chlorine on a daily basis from your busy schedule.
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