Please be gentle on me! I know there's a lot of info here but quite honestly haven't had much time to go thru it all. It's all quite confusing to me either way. Ha. I just bought a 10'x30" round frame pool. I saw at Wal-Mart their chemicals are numbered by steps. Are all those necessary for this size of pool? And should i use bleach rather than the chlorine tablets? I don't know anything about all this. I live in south TX so it gets pretty hot down here and the pool will be out in the open.