i HAD THE SAME PROBLEM, I FOUND THE WATER HOSE (THERE ARE 3 INCOMING TO BACK OF WHITE PLASTIC UNIT) HAD A KINK IN IT. I TWISTED IT AROUND WHICH TOOK OUT THE KINK, AND THUS HELPED THE WATER FLOW. I NOW HAVE VERY LITTLE RESIDUE BUILD UP IN THE SOFTNER COMPARTMENT.
I HOPE THIS HELPS...........
DEAN.
Dean
May 2009