Comment by mynameisnoone

Sorry, but you don't know what you're talking about.

> filter out beneficial minerals

Take a supplement if you feel you are deficient in any specific mineral because it doesn't justify whole body fluoridation or ingesting sketchy tap water. Flint, MI isn't an isolated incident.[0,1,2] Anecdotally, my mom's cousin's family died from silent uranium contamination of the tap water in the Four Corners region.

> are $$

I bought a 100 GPD RO system for $180 that uses generic parts. Running cost is $70/year including cleaning and membranes. Yes, it's work.

> waste a lot of water

FUD. Using less water on landscaping, hygiene, and laundry are far more important. Brine only leaves the system during generation. If there's no demand, e.g., you're not taking any water out of the tank, then there's zero waste. Permeate pumps ($50 option) reduces brine waste considerably by saving the backpressure leaving the system and boosting the intake pressure at the membrane. The brine waste stream is roughly 2x with a permeate pump vs 8x without. RO water at our house is only used for drinking and ice, which is ~2 GPD, so the total water usage is trivial.

0. https://mytapwater.org

1. https://www.businessinsider.com/cities-worst-tap-water-us-20...

2. https://www.theguardian.com/us-news/2021/mar/31/americas-tap...