Wife wants a pool installed. Nothing fancy with waterfalls or any crap like that. Just something the wife, myself, and our 8 year old can have fun in. We have two pools in our subdivison that are always packed with people and usually close once a week because some kid craps/throws up in them. Also, they aren't very deep (3.5' feet). Any advice would be appreciated-monthly costs on chemicals, long term costs, etc.... Btw, I live in Ft. Worth. It's 100+ degrees out. I could see us using the pool from around April-Sept/Oct.