In 1976 Americans drank an average of 1.6 gallons of bottled water every year. Roughly 30 years later consumption increased to 30 gallons per person, according to the Earth Policy Institute — despite the fact that bottled water can cost anywhere from 240 to 10,000 times more than tap water, which is brought right to your home for pennies a gallon. Bottled water also creates its own share of pollution — the production of plastic bottles requires millions of barrels of oil per year and the transportation of bottled water from its source to stores releases thousands of tons of carbon dioxide. R/O filter systems will greatly reduce the amount of total dissolved solids (TDS) that are present in the water supply. Measuring TDS is easily done with a very inexpensive TDS meter and is a great way to monitor the life of the reverse osmosis membrane. Should you want to have a TDS meter for yourself, let us know and we will order one for you.