This is a very good site. I have been researching and preparing for my pool for over 2 years. I interviewed 12 pool builders. This website provided me with additional information that helped me with my quest. I tried to upload some photos of my new pool--filled and operating since June 22, 2010. It is a 31,000 gallon "L Shape" diving pool. I am using the EcoSmarte water treatment system (chemical free) and have had no issues. I have a Pentair Triton T-100 (600lb) filter with the EcoSmarte Glass Media; Pentair VS-3050 pump; Aqua Comfort AC-1500 Heat Pump; Booster Pump and Polaris 3900s cleaner; River Rok Lucayan Blue pebble finish; for extra fun a Turbo Twister Slide. Thanks for the interesting reading.