Has anyone heard that it may not be good to us rain or RO water for indoor growing because it has NO PPM and it strips your soil of alkalinity I'm right here baby what's up added some calcium to my water and about my PPM up to 86 and my plants look great after 48 hr.
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I just heard a podcast the other day talking about that. Apparently R.O. water is corrosive and can strip calcium from the soil as well as your teeth and bones if you drink it on a routine basis. I just make sure to add cal-mag to mine and all seems well.
Yeah I mixed 1/2 and 1/2 let sit for 48 hr added some calcium and I'm up to 86ppm and a 6.4 pH and I can tell the difference. Thanks for your support your great at what you do. Keep it up.
Some growers like to use RO water since it has little to no PPM and they can simply add nutrients to "a blank canvas". Other growers will use de-chlorinated tap water to take advantage of the nutrients that come in that. Either way will work.