Aqua-Idea Salt Chlorinator is designed to operate for pool ranging from 10,000L to 100,000L of water. 3 grams of salt per liter of water is recommended for producing chlorine in keeping the pool water silky smooth and bacteria free.No more high costs for transport, storage and handling of chlorine gas or high concentrate commercial bleach.No harsh chlorine fumes or odors, no more red eyes or itchy skin caused by swimming in water rich in chlorine by products.