I am a first time pool owner and the pool is about 20yrs old. Its a plaster pool. I have a basic understanding of why proper maintenance is required however I dont always completely understand the chemistry around it all. for that reason, i just take my little bottle to Leslies and they usually tell my chlorine is low so add about 2 scoops of "Power Powder" and 1/4 gallon of the muriatic acid bottle they sold me. Beyond that, i keep my floating chlorinator full with 4 tabs which last about 2 weeks and the pleats on it are mostly closed. I have read through most of the pool school pages but still dont know what I should do or steps i should take. Since i live in North Texas, my pool will stay open all year. Ideally I want to use as little as chemicals as possible because my family will spend most of the summer in the what. It sounds like a SWG is a good way to go however I am also interested in some of the Ozone on UV technologies out there. Thanks in advance for your help.