First post but I've been getting a lot of information here. Thanks to all the contributors for taking the time to share your knowledge!

I've just installed a new softener and need to do the programming. It's a Fleck 5600 SXT valve with 1.5 cu.ft. of SST-60 media in a 10x54 tank. The BLFC is 0.5 gpm and the DLFC is 2.4 gpm. There is a label that says injector 01 as well, but I have no idea what that means.

The water tested as follows:

PH- 6.9
Iron- 4.56 ppm
Hardness- 18 Grains
TDS- 397

There are currently 2 adults living in the house with 1 3/4 baths and only the usual water users (dishwasher, laundry, normal tub). The well is 110' deep with a 3/4 hp pump.

In the past I've added Iron Out occasionally or as needed and that has been enough to keep the water clear. With this new system I'm going to try Pro Guard resin treatment with a Res-up feeder unless someone tells me it is a bad idea, but for right now, I just want to get the programming setup correctly on the valve.