Hello, I recently ran across this forum. What a wealth of information. One of those things where you didn't know what you didn;'t know until you started reading. Pool math and school sections are great. I have had a few above ground pools and some of the upgrades are simple. But to see others who have done them already is rewarding to my MacGyver skills. Right now in Vegas I have all the time in the world to spend on/in my pool.