I spent 20 years successfully caring for my own pool while living in SW Florida. I have lived in Texas now for 4 years and have been equally successful at maintaining our in ground DE pool. In Florida, I used muratic acid on a regular basis along with liquid chlorine and tablets in the chlorinator and a simple paper filtered system. Here in Ft Worth, I have only used the granular shock & chlorine tablets in a floater and the DE filter system. My question is this; Why haven't I seen those yellow plastic chlorine containers here?