Today I installed a new Fleck 7000 SXT water softener with 1.5 cu ft of resin (see this post for the recommendations). I'm not sure if I got the programming right.

Basically the only change I made was to the hardness (9). Afterwards I initiated a manual regeneration and sat back to watch. The brine draw is set to 60, but when I checked at 40 minutes the water in the brine tank was gone. The level appears to be at or below the bottom of the air check valve. The brine fill cycle is set to 12 minutes, and that didn't appear to add a measurable amount of water to the brine tank.

What did I miss? I've listed all the settings from the Master Programming mode below. The BLFC from the sticker on the valve is 0.125 gpm.

DF: GAL

VT: dF2b

CT: Fd

C: 35

H: 9

RS: rc

RC: 0

DO: 14

RT: 2:00

B1: 10

BD: 60

B2: 5

RR: 10

BF: 12

FM: t1.2