You can get a countertop RO unit for home use that's so easy to use. It's also utterly cheaper to use than any commercially purchased RO water. Just remember to

You can get a countertop RO unit for home use that's so easy to use. It's also utterly cheaper to use than any commercially purchased RO water. Just remember to clean the pitcher and your water bottle every week from their insides. Also, if you buy the RO water in plastic, that's risking avoidable microplastics. I use glass and steel bottles.