Please help... I've talked with the company I bought the softener from and I've talked to the manufacturer, but settings don't seem right. Current settings are from manufacturer. The reason I think there incorrect is during the bd phase it seems like it draws in all the solution.. but still has time left. Then during the bf phase.. it stops filling the brine tank at 30 mins.. but runs for another 30 mins. The brine tank has a float in it.. I'm assuming this is stopping the fill process. If that's the case should I lower the time? Or not worry about it since it stops because of the float? Another question I had is in regards to capacity.. why set it to 48 when its a 64k system?

System:
Fleck 7000 On Demand Metered Control
2 Cu. Ft. High Capacity Resin 8% Crosslink
12x48 Resin Tank
18x33 Brine Tank
Salt Grid
2310 Safety Overflow Assembly
Blfc: .125
Using potassium
Hardness is 19
4 people in house hold

Current settings:
Df/gal
Vt/df2b
Ct/fd
C/48000
H/19
Rs/sf
Sf/10
Do/off
Rt/2:00
B1/10
Bd/60
B2/5
Rr/10
Bf/54
Fm/t1.2