I have the Fleck 5600SXT, set up went great, think I have all the settings correct, but tonight was first regeneration and the drain line is just flowing water...I probably had 6-8 gallons of water come out of the line for approx. 45 min...is that normal for each regeneration. Just seems like a ton of water to regenerate?? Any help if this is normal or my settings are wrong and is causing this (which if it was...I will post my settings). Thanks