If you can rinse the spots off with water, those are not hard spots. Softening replaces hard calcium and magnesium with sodium salts, but that still leaves a spot when it dries. For your fancy glassware or eyeglasses, you could spray distilled water after rinsing with tap water. A gallon is often less than a dollar, and it can last a long time.
Usually people use 60 gallons per day per person for reserve gallons calculation, but you could watch your numbers decrease on the display for several days and adjust that RC if you think it is appropriate. Note that if you are planning for visitors tomorrow, and your count is down, you might schedule an early regen tonight by poking the extra cycle button. That will cause the "service icon" (faucet icon) to flash, telling you that it has scheduled a cycle to happen tonight.
But here is what you asked for, presuming a 0.5 gpm DLFC and using 8 pounds per cubic ft of resin:
System info (not programmed)
salt lb/cuft = 8 ; A choice ( efficiency vs capacity)
BLFC = 0.5 ; Brine Refill rate GPM
cubic ft resin = 1.5 ; ft3 resin = (nominal grains)/32,000
Raw hardness = 22 ; including any compensation
People = 5 ; gallons affects reserve calc
Estimated gal/day = 300 ; 60 gal per person typical calc
Estimated days/regen = 5.5 ; Computed days ignoring reserve
Fleck 5600SXT Settings:
DF = Gal ; Units
VT = dF1b ; Downflw/Upflw, Single Backwash
CT = Fd ; Meter Delayed regen trigger
NT = 1 ; Number of tanks
C = 36.0 ; capacity in 1000 grains
H = 22 ; Hardness-- compensate if needed
RS = rc ; rc says use gallons vs percent
RC = 300 ; Reserve capacity gallons
DO = 28 ; Day Override; Can make 28 for city water
RT = 2:00 ; Regen time (default 2 AM)
BW = 5 ; Backwash (minutes)
Bd = 60 ; Brine draw minutes
RR = 5 ; Rapid Rinse minutes
BF = 8 ; Brine fill minutes
FM = usually t0.7 but could be P0.7; flow meter, make note of what is there
(FM:
http://terrylove.com/forums/index.php?attachments/img_fleck5600sxt_flow-png.31592/)
