Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes ...

We like this highly-rated and easy-to-use pool shock for several reasons ... Verified Amazon purchaser Barry Harrell says it's the best treatment for "when the pool gets out of hand" and loves ...

However, if after a few days following the shock treatment you notice that your pool isn’t clearing up and is still cloudy and/or green, it’s best to call a professional to properly diagnose ...