Hello,
Hardness is 7. I went with the SST-60 because per the specifications it's supposed to use less salt and water in the regeneration.
Right now it's programmed to use 18lbs of salt.
I have two manuals (one for the econominder and one for the SE) for the Fleck2510SE. The installation instructions were printed from the sellers website. The installation does not say anything about programming the valve. I do know HOW to program it, but don't know what data to put in or how to calculate it.