Grocery stores usually have the RO system so you can get filtered water through them, however a reverse osmosis filter is a whole system (I have 2 of them). Usual 2-4 prefilters followed by a ro membrane and then a holding tank for the filtered water. They are coming down in price but have to be plumbed into your water system. I have well water and don't like the taste straight out of the faucet, no taste (for the most part) after going through the filter.
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Re: HOw to get in the amounts of water we need and not empty the stomach
