Hi everyone, I'm thinking of going with a custom water softener setup rather than one of the ready to go units. I'm thinking: Twin tank setup, but with both tanks generally in operation at the same time. Regeneration would be offset so soft water would always be available. 2x 10"x54" Vortech Tanks 2x Fleck 5800 LXT or SXT Control Valves Purolite Shallow Shell Resin - 1.5 cubic feet per tank. Anyone have thoughts or advice about this route? I'd like to get the SSTPPC8000E resin, but I only see SST-60 for sale online. Thanks!