Here to help: How to store pool chemicals
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When you pull off the pool cover, there's a good chance you'll find algae has taken over your pool water during the off season. The first thing you'll want to do is apply shock in the evening based on the volume of your pool. It's important to know that there are different types of pool shock formulas; it's helpful to use a cal-hypo shock product because it will not cause over-stabilization of your pool water (also called "chlorine lock" which essentially means your chlorine works much slower and you may need to partially drain your pool and replace with fresh water).
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Caution
Please read the following important reminders before adding pool chemicals to water:
• NEVER mix products together or dissolve before use.
• ONLY enter pool when FAC levels are below 4 ppm to prevent risk of bodily harm.
