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GDub51

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GDub51
You've got to get the TDS meter before you can make that decision. Use whichever is lower (likely the tap) and buy an ionic filter if necessary to lower the TDS. (to make room for some fertilizer) Some of those solids are useful (Calcium, magnesium, etc) but too much of anything, like everything, is no good. The plants can only eat so much at a particular time of their life. Charts are easy to find on the web. If you don't follow the charts and keep your feedwater within limits you'll "lockout" your plants. This means they get clogged up with the extra food and it blocks new food from being absorbed. Follow the charts diligently, check your PH with each load of feedwater. Don't worry about it being exactly 6.2PH, let it drift a little each way for a more natural effect. Also, if you go organic, the TDS meter will not help you judge how much to use since the TDS meters only work on synthetic nutrients. Then one must follow a chart/feed schedule somebody else figured out or guess using your experience. It's hard to "lockout" plants with organics so one can be liberal but you can still use too much and waste it. I'm a new convert to organic. I found it seemed to have prevented previously experienced yearly problems with caterpillars and diseases! While producing the tallest plants I've grown. (GSC's to 8' in 12-gallon tall pots) Whether the quality is better is still to be shown. Flowers look better, but the wind and heatwave damage prevented a better study. Having lost the bugs and diseases though is enough to switch me permanently to PRIMARILY ORGANIC. I say "primarily" because I have been told by an associate who is the Professor of Soil Sciences, Dept. of Plant and Soil Sciences at a major university, that one can mix organic and chemical fertilizers as long as they are not used simultaneously. (separate feedings) My trichomes were more numerous than ever, but the heat waves and wind storms took a bite out of the quantity and quality making the majority of this years grow headed for the dry ice hash processing pile. Though, not all have been tested yet. I dry and cure very slowly in my wine cellar at 64'F and 55%RH so the October harvest is not really ready till at least Christmas and improves through the spring. (Have room in my cellar if anyone wants to try drying/curing there. ((a small sample fee required!) HAH!