An ozone generator is a very effective way to kill bacteria in your pool. It will kill the kinds of bactreria that are chlorine resistant. However, it will not leave a disinfectant residual in your water which is necessary for safe, algae free water. So, an ozone generator is usually combined with a salt chlorine generator. This combination results in very safe water, and the lowest possible levels of chlorine. AutoPilot makes an excellent combination product called the CoPilot. If you are interested in learning more, please give us a call at (239) 574-1133.