Chris answered all my questions and knew the exact system to use that would fix my sulfur-smelling hard water issue. Victor came and did a great installation a few days later. When he installed the sink faucet for the filtered water, it disconnected my garbage disposal. Chris said he would have come out a few days later, but I was able to get someone else to fix it before he was able to. Not a problem in my book, because the very same day of the installation I had soft, great tasting, and not smelly water!