Safe, Odorless, Non-Toxic, Non-Irritating, Non-Allergenic. THIS PRODUCT WORKS! This Unique Product keeps pools clean and clear without using harsh chemicals. One 1/2 gallon treats an average pool for about 2 months. A Superb Bactericide and Algaecide. Tests, such as the University of Maryland Report on Rain Forest Blue, have shown that Rain Forest Blue kills cholera, pseudomonas, e-coli, salmonella, shigella (Montezuma’s Revenge) and other forms of coliform bacteria as well as yellow, green, brown, and black algae. Kills bacteria and algae, yet is harmless to people and pets. Unlike regular chemicals, is easy on your hair, skin, and eyes, and is safe and worry free for you and your family. Soft, Clean Water with NO Chemical Odors and Irritation. Controls calcium levels (and other hard water minerals) resulting in low maintenance. Calcium buildup causes unsightly stains and damage to your pool equipment. Rain Forest Blue removes calcium from your water reducing or eliminating this damage, leaving your water soft and conditioned.