Ozone Offers Advantages for Pools  Filtration support: Ozone assists flocculation of organic waste materials, thus enhancing the effectiveness of filters.  Water purification: Ozone directly decomposes organic waste by oxidation.  Water sanitation: Dissolved ozone residuals kill virtually all bacteria, viruses and fungi.  Water oxygenation: Unused ozone turns into normal oxygen and remains dissolved in the water to the point of saturation. This makes the pool water clean, sparkling and appealing.  Leaves no toxic residues in the treated water.  It is produced on site and it does not require storage or transportation.  Ozone systems do not cause adverse health effects.  Undissolved ozone off-gas is easily separated from the treated water and quickly reverts back to oxygen. Chlorine that is released from the pool water is in its highly toxic gas form and hangs right above the pool surface. This is most apparent in indoor pools, where the pool room is filled with chlorine gas and its obvious odor.  Ozone ends water discharge liabilities.  Ozone destroys all types of microorganisms, prevents calcium carbonate scaling and removes existing scale, reduces the corrosion rate of exposed metals, and cleans and prevents greasy sediments on pool sides.  Ozone treated water has a much lower cleaning cost.  Ozone is being used by numerous hospitals and rehabilitation centers. Today's ozone technology does not require chlorine assistance, except as a backup in case of maintenance or power problems, (bromine is preferred and is much safer).  The dosage or ozone requirements for pools is typically 0.125 to 0.150 gram per cubic meter of pool volume, This has been verified at a number of public, commercial and hospital pools. (Private pools require lower dosages )  There is no known negative effect of swimming in ozonated water. There has never been a death from ozone while over 100,000 people have died from accidental exposure to chlorine.  Properly sized ozone generators will provide all the necessary ozonation power to purify, oxygenate and sanitize swimming pools, whirlpools, and lakes of any size. The production of ozone is maintained automatically at desired levels,  Envron systems modular design provides spare capacity in case of any component failure.  Ozone can do everything that chlorine can do and more. Hundreds of scientific papers confirm millions of successful water and pool installations with Ozone.