Best cartridge filters
I am getting ready to upgrade my old pentair DE filter to a new cartridge filter. A couple of questions:
1. Which brand is the best? Sta-Rite, Pentair or Hayward?
2. Does oversizing matter? I have a two story roof with solar, and have a pentair VS-3050 pump, will a larger filter have any effect on the way the solar performs?
3. Pricing to change out old system (filter and backwash) to new cartridge system?