I have been studying Hydraulics 101. I noticed that a catridge filter is good for a SWCG. But sand filter is good for winterazation. But a DE is good for really clear water. So, I was interested in a DE filter but I would like to go saltwater. It will also have to be put away for winter. Am I just getting to technical in my head and over thinking? The DE with saltwater will work fine right? Thanks!