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I'm on city water. Got this info from water company: Unit/Min/Average/Max Alkalinity (HCO3) mg / 61 /95 /129 Ammonium (NH 4) mg / <0.04/ <0.04 /0.07 Fluoride (F) mg / 0.8/ 0.9/ 1.0 Hardness, total ° dH 6.5/ 7.6/ 9.0 Iron (Fe) mg / <0.01/ <0.01/ <0.01 Calcium (Ca) mg / 28/ 31/ 39...

Hi. Been growing in soil with no problems. Now i'm gonna try dwc next time. Is my water ok for dwc, or should i invest in a RO system. According to my water company i have 8 °dH. My readings are (tap water, 24h from tap): Water temp: 25.8 Ph: 7.8 Ec: 0.35 PPM: 177 I have ph-up and ph-down if...