When added to water, Oxy Pool immediately disassociates to natural soda ash and hydrogen peroxide, which oxidizes algae and other organic matter Achieves good clarification of algae infested water and oxidizes organic contaminants in the pool Lowers excessive levels of chlorine Natural based raw ingredients Ideal for vinyl lined pools Weight 20 lb. tub About ecoone ecoone non-toxic pool and spa products were created for those who desire simple, nature-inspired, environmentally friendly products for their pool and spa Products are simple-to-use and take the guess work out of maintaining pools and spas Since 1997, ecoone has been the leader in developing natural-based pool and spa treatment systems The ecoone system reduces and/or eliminates the majority of your spa care chemical regimen including foam reducers, pH up, pH down, clarifiers, scum digesters, filter cleaning products and chlorine/bromine ecoone features Free of dyes, perfumes and fragrances Free of petroleum based chemicals no VOCs Made using enviro-friendly ingredients Natural ingredients means softer skin and less irritation to eyes Recyclable packaging Made in the USA Note In an effort to be more eco-friendly, OXY-Pool does NOT come in a bucket as pictured . It comes in a recyclable heavy duty cardboard cube with a reusable plastic bag liner