"A reverse-osmosis filter system that includes carbon filtration will give you the cleanest water possible at home and will reduce or remove most water contaminants including arsenic, hexavalent chromium, and perchlorate," Andrews adds.
And you can even get a reverse=osmosis system for your entire house, so every sink and faucet emits the best, safest filtered water for cooking, bathing, and even brushing your teeth. Can you really put a price on that? (You can -- it costs a couple grand.)
So, to get the best, cleanest drinking water, you need to install a reverse-osmosis system, and drink solely out of glass or stainless-steel containers. Your next best option is a carbon filtration system that goes over your faucet -- it's significantly cheaper, and easier to use.