http://www.qualitywaterassociates.co...izingchart.htm to learn how to come up with the gallons on your meter - minus one days' gallons for your reserve.
The Brine/Slow Rinse cycle sucks the salt water out of the salt tank. It should suck all the water it can in the first 10-20 minutes and then, the slow rinse continues so it can flush the resin in brine water and the brine water out of the tank, for like 30-40 minutes. So 60 minutes, but it depends on the size of the softener, based on the volume and type of resin and, the lbs of salt used per regeneration.
Refill puts the water over into the salt tank to dissolve 3 lbs of salt per gallon, and it is flow controlled at usually .5 gpm or 1.5 lbs per minute.
Then Final Rinse, it depends again on the volume of resin etc.. Whoever sold you the unit should have set this stuff or told you how to and you shouldn't fool with the settings.
So... what size softener or cuft of resin? How hard is the water and how much iron and manganese (if you know)?