The ultimate delivery of hassle-free Fresh Mineral Water care for in-ground pools up to 40,000 gallons. Taking care of your pool has never been easier. Designed using Frog's No-Touch delivery system, the minerals in our Pool Frog Model 5400 continually work hard to control bacteria and keep the pH neutral so your pool water always stays clean and clear. With no daily dosing or heavy chlorine odors, the complete Pool Frog Fresh Mineral Water pool system can allow you to cut chlorine use by up to 50% compared to standard water treatment programs.