ControlOMatic has updated the specifications for the amount of chlorine per day for their spa chlorine generators. They originaly tested at 70 degrees F which gave low chlorine production rates and since most spas are at 104 degrees F that is where the rates should be specified.

ColorChlor and TechniChlor: 33 grams / day, or 0.07 pounds / day
ColorChlor HP and TechniChlor HP: 53 grams / day, 0.12 pounds / day
The tests were performed at 100 degrees F and a salt concentration of 3000 ppm.