Everyone's gallon count is going to be different. The tool we provide factors in your system size, the water hardness for your home, and how people people you have in your home. To figure the recommended gallon count, use the formula below:
(System size ex. 32,000 grains / your water hardness) - (the amount of people in your home x 75 Gallons) = your recommended amount of gallons to program in setting 3.
*Reduce the total number calculated by ⅓ if on well water.
We also have the same tool on our website that can do the calculation for you here.