Just a small word of thanks for your brilliant ES3 system which was fitted to our new pool. Nearly 2 years on and our pool water is simply fantastic. No chlorine, crystal clear, no need to rinse off after swimming and definitely no red eyes. The system itself is very simple to use and we have only just changed the original copper and silver electrodes. Your support and willingness to answer our queries has been great and we recommend your product to everyone. By the way, our beloved cat would rather drink out of the pool than his water bowl.