cross-posted from: https://lemmy.ml/post/27121839
this post was submitted on 13 Mar 2025
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Just remember! Reverse osmosis filters are NOT eco friendly, it cost 3 to 4 gallons of waste water discard to gain 1 gallon of drinking water.
Using modern filters, and using a pressure booster pump to ensure proper pressure level this is actually nowhere near as bad it's now possible to achieve a one-to-one clean to waste ratio.
If you don't want any waste you can go to nanofiltration which is roughly as effective as Reverseosmosis and does not have the Wastewater issue but they are significantly more expensive.
And it's not as if that Wastewater is sewage it's just the same water that came in with a higher concentration of the stuff that you didn't want that was already present in the water so that Wastewater can be reused for gardening, or gray water such as showers and toilets
I get that they aren't perfect but everything has a trade off and reverse osmosis or nanofiltration is really the only way to get rid of many different sources of water contamination especially things like microplastics and pfas