We have a softener system for our well water. I have not been happy with our water for years because there was always the mineral buildup around faucets, glasses spotted, etc. When we had a plumbing job done recently, I mentioned this to the plumber. He checked the water hardness and found it was registering 20 grains of hardness. All mechanical aspects of the softener system were working. We had him come back and replace the contents in the tank of the softener unit. After completing this, he retested the water and it was showing no grains of hardness. As a result, I was expecting to feel a difference when showering though. There is no slippery feel that I have experienced elsewhere that had soft water. Is this normal? I am not doubting the honesty of his water testing for hardness; I now put my glassware in the dishwasher and they virtually have no spots on them. Before, I always hand washed because of the spotting.