Pool Frog Flipping Frog XL is a 2 part pool care system for pools in the 5,000 to 10,000 range. This system uses minerals and chlorine to help keep your pool water clean and clear. Due the unique nature of the minerals in this system you are able to use 50% less chlorine than traditional chlorine pools. You will know when to replace the chlorine as the Flippin’ Frog XL will flip over signifying an empty chlorine cartridge.