Long story which I won't bore you with but we just "returned" from spending a week in our next door neighbors' house. We're on the same water supply and I've always loved our water. We're at Lake Tahoe and the water is so cold and clear and wonderful. I didn't think our neighbor's water was nearly as good; nothing wrong with but not as good as ours. My husband agreed. I'm guessing they have a whole house water softener as my hair, after shampooing there, was awfully soft. I'm just guessing that a water softener would have to effect the taste of water. Any experience/knowledge about this? Thanks.