Ed, there is a water purifier that fits under your kitchen sink and attatches to the cold water line.[we sell it at our shop] It's called Ever Pure and kills 99 % of all the awful things in most water supplies. It also makes water taste good. With this system, you fill your water bottle right out of the kitchen faucet- it will pay for itself in a year or less- after that it is just a matter of replacing filters. The company that makes this filter supplies Coca Cola plants, resturants, etc. etc. world wide.If sounds interesting to you, e-mail me and I will give you a web site to puruse. Amy