I have a 8x44 tank with a Fleck 5600 metered valve on it, and my question has to do with the brine tank refill cycle. My salt dose setting is set at 9lbs, and from what I have found in my research is that 3 gallons of water should be going back into the brine tank during the brine refill cycle. My brine tank has almost 6 gallons of water in it. Is this acceptable or too much? Will it cause me to use more salt? What could be the cause of it? (I just replaced the piston, seals and spacers, and replace the brine injector parts last June)