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Johnny555 | karma 14666 | avg karma 3.76 · 2016-09-07 12:13:53

CO2 is cheap, but not when Sodastream sells it. People that want cheap carbonated water have modified their sodastreams to accept larger beverage-store CO2 bottles:

http://www.frugalwoods.com/2014/08/11/how-to-cheap-homemade-...

Higher fixed costs, but if you drink a lot of carbonated water, you quickly recoup it.

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