We've lived in the same house for 28 years now and we built the original pool 25 years ago. Last June '15 we did a complete remodel and replaced old plaster with Pebble-Tec. All other equipment is new too, filter, sweep, solar, and pump. I do the maintenance my self with the help of Leslie's Pool where I take water samples for testing. There are two in this area (Northern California) and I get different reading from each one. The pool looks great! The water is clear and alive. However, I've had high cyanuric acid levels almost from the start. I used granular tablets for chlorine and shock with Leslie's Powder Plus. I also use Phos Free to keep the phosphates in check although I never heard of them before. Anyway, I continue to monitor as I am not going to let anything get out of hand so I'm looking forward to following your Forum to experience what you all are doing. Thanks.