Description Yellow Out Pool (Chlorine) Shock Treatment is a chemical breakthrough! Amazing cleanup results when used prior to shock treatment with an EPA-Registered chlorinating compound that kills green or mustard algae. MULTI-PURPOSE: Raise the levels for chlorine, water hardness, and pH in your swimming pool giving you crystal clear water. INCREDIBLY STRONG: Due to its high percentage of chlorine, it is very effective and efficient for a quick chlorine boost. MIX BEFORE YOU FIX: Add this powder to a bucket of water before you add it to your pool. Add a 1 lb bag per 10,000 gallons of pool water. BEAT THE GREEN: Kill the algae in your swimming pool by adding 3 bags of Yellow Out Pool (Chlorine) Shock Treatment per 10,000 gallons of pool water. WORKS BEST AT NIGHT: Maximize performance by adding this shock to your pool at night. Wait to swim 8 to 10 hours after application. Show More Show Less
