re: Best filter system for an inground pool?

The term "mineral" in relationship to pools varies greatly. Some call a salt chlorine generator a mineral system. Others call ionizers mineral systems. Most commonly it refers to cartridges containing silver and other blended items. All of these still require chlorine. An ionizer or mineral pack may reduce the amount of chlorine needed but it still needs a properly maintained chlorine level.

Also for the people who say they use salt and never do anything to their pool these are the same people that are shocked that their heater is damaged and they need to resurface their pool much sooner than others.