SpaChoice 5-Pounds 2-Pack Premium Re-Energize, Non Chlorine Pool Shock, Made in USA

When used regularly, it will eliminate organic contaminants and keep pool water crystal clear Apply 1 pound of this product per 10,000 gallons of pool water every two weeks for pools with light swimming usage For pools with heavy swimming usage, apply 1 pound of this product per 10,000 gallons of pool water every week Quickly oxidizes contaminants in your pool Improves sanitizer efficiency You will use less chemicals with this as a part of your maintenance routine