BENEFITS: Kills bacteria and algae; Helps clarify water in 24 hours; Prevents scale formation; Softens water USE: Follow included instructions; Apply directly to the pool or through a skimmer COMPATIBILITY: Fresh and saltwater pools FEATURES: Convenient, easy to use, and won't over-stabilize your pool; Won't fade liner when used as directed; Crystal clear results in 24 hours; Fast dissolving KNOW IT IS WORKING: With Visible Blue action, you can see for yourself how this HTH shock treatment is working in your water