Hayward Pool Products Aqua Rite and Jandy Ei pool provide a complete pool and spa sanitization using ordinary salt. It converts a small amount of salt ??? approximately one teaspoon per gallon of pool water ??? into a virtually endless supply of fresh, pure chlorine. This environmentally friendly and self-renewing process produces up to 1.45 pounds of chlorine a day, enough to keep the water in a 40,000-gallon pool clean, clear and luxuriously soft.