I had considered RO but had read that the PH will creep up when exposed to air. Currently have open barrels - 200 litres of water. If they were filled with RO water and allowed to sit a day or two, do you think the PH would creep up much if used within a few days of filling? Getting an RO...
I’ve read this whole thread and will try to rein in my questions. Just wanted ask though. I have hard water, alkalinity of 155, ph varies between 8-10. Growing in Pro-mix HP. I’ve had issues with nutrient lockout when the ph tester wasn’t working properly, plants seemed to recover when...