Well, Here is my review of the "ColorChlor Chlorine generator" I was intrigued with the concept!!! recieved one in the mail in October, emptied and refilled the tub, mixed the proper amount of salt with that water, and with some fear & anxiety left for a 3 WEEK TRIP out of the country with NO one checking the tub!!!! Result upon return was FABULOUS!!!! took care of itself and all levels were right on the money. THIS is a GREAT product, its takes the hassle out of hot tubs...!!! - Bob Durham via Facebook