I am less than a month away from filling our new pool and am thinking about getting a filter for filling the pool as we occasionally have rust colored water. I have an r.o. System for drinking water and it works great. I have seen filter housing which are approximately 20”x5” that I was thinking about using. The actual filters are available in micron ranges from 1-100 with 25 micron being what is recommended for sediment /dirt/ rust. I will be getting a D.E. filter if that makes a difference. Anyone ever go this route and if so, what style and micron filter did you use?