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comment by randomuser
randomuser  ·  3427 days ago  ·  link  ·    ·  parent  ·  post: California's 50,000 Pot Farms Are Sucking Rivers Dry

Hydro is even more efficient because you keep all of the water in a reservoir lol. But still the fastest water drinking plants I've ever seen were going through about 15 gallons a week, and only for a couple of weeks at the end of flowering. Not realistic for most grows.