We have lousy tap water at our home. It is so hard that if I put a pot of water on to boil, large mineral crystals will form in the pot after a short while. I refuse to drink it, even just to help swallow a pill. We currently have a water cooler with home delivery of five-gallon jugs for drinking and cooking, but we want to do away with this. I'm doing research online, but I strongly believe that personal references are best. So can you tell me if you or anyone you know currently has a home water filtration / softening / purification system, what kind you have, and how well it works? Thanks!