Hi all. Got my daughter a Wal Mart pool (Intex 18x48 ultra frame round). I have it set up and almost done filling it up with water. What in the world do I do now? All this chemical stuff seems like rocket science to me. I have one of the floating things with the 3" chlorine tablets in it and that's all i have bought for the pool. Other than that, I'm lost. What is my next step? And please, give it to me in basic terms as I know absolutely nothing about pool lingo. Thanks for any help you can provide and I'm glad I found this site.