I stand corrected; thanks, Gary.
While we're on the subject of brine tanks, I've got a couple of questions:
1) The brine level in my tank decreases over time. No matter where it starts out, it eventually settles at about 3-4" deep. It looks like it draws brine (at BLFC rate?) until the tank is empty, then later refills at the BLFC rate -- 3 gallons total. Is this correct?
2510 control has 0.5gpm BLFC, 2.4gpm DLFC, and is set for:
10 minute backwash (At max flow pump will support, up to DLFC rate.)
60 minute brine & rinse (Brine at BLFC rate until tank is empty? Then rinse at DLFC rate.);
6 minute rapid rinse (At DLFC rate.)
6 minute refill (At BLFC Rate.)
All hose connections are secure, no leaks obvious.
2) There are bold-face instructions in my 2510 manual saying "IMPORTANT -- SALT LEVEL MUST ALWAYS BE ABOVE BRINE LEVEL IN BRINE TANK". Why? Just to ensure completely saturated solution?