We have had the Enviroswim pool system for 4 years and it has operated faultlessly and maintained superb water quality throughout this time. In our previous home, we had a chlorine based pool system, which incurred high monthly chemical costs and required lots of fiddling to keep the water quality stable. Now our water is always crystal clear, tasteless and odourless. We can go away for weeks on end and the system does not miss a beat. We heartily recommend this brilliant Aussie technology to any prospective pool owners.