Approximately $3,600.00 fully installed for an average-size pool and approximately $400 per year in mineral costs, for an average pool in a temperate climate. This cost may be lower in a cool climate and higher in a tropical climate. For the purposes of providing an indicative costing, 45,000 litres is the volume of an average-sized pool in Australia. People switching from chlorine pools require an ozone system with an integrated chlorinator, whereas people switching from salt pools require just an ozone unit. These two options vary slightly in cost also depending on pool size (bigger pools may require a more powerful ozone unit). Cost excludes any further savings that may be realised through reduced usage of electricity from running your chlorinator at a reduced level.