I just installed the fleck 7000SXT softener and need help with programming it (48k capacity, 1.5cu ft). Based on 3 person@60 gallon, 16-17GPG hardness, assuming 3000k/day, in 8 days that come up to 24k grain.

I did some research and came up with this :

DF: GAL
VT: dF2b
CT: Fd (Meter Flow Delayed)
C: 24k (capacity)
H: 17 (hardness)
RS: SF (Percentage Safety Factor)
SF: 20 percent
DO: 9 (Day override)
RT: 2:00AM
B1: 10 mins (back wash)
BD: 60 mins (brine draw)
B2: 5 (salt time setting)
RR: 10 mins (rapid rinse)
BF: 12
FM: t1.2 - 1.5'' Turbine Meter (7000 default)

Questions :

GPG varies between taps, sometimes it's 16 on this tap, and 17 on the others. Should I use 16 or 17? As far as I know, the 7000sxt have by pass right? just in case it need a service, I can put it on bypass so I still have water going to the house.

Are the setting right? Please advise.