Upon further research I have changed my stance, I had never seen this WHO report before. It’s old but they recommend not drinking water less than 100 ppm. htt

Upon further research I have changed my stance, I had never seen this WHO report before. It’s old but they recommend not drinking water less than 100 ppm. https://www.who.int/water_sanitation_health/dwq/nutrientschap12.pdf https://www.who.int/water_sanitation_health/dwq/nutrientscha...