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It is also used for water purification. See Drink more water Aquatru Water Filter.
See https://x.com/eliotmuir/status/1759222161410031979?s=46&t=tXXJtkvJBEAxV8Xpuj7mnw
Osmosis reduces in speed when there is less difference in concentration. Useful knowledege for a healthy diet - drink a litre of water before each major meal - it will help ❤️