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Bad Water Supply - High TDS/PPM Tap water - 500-550ppm

TPYRDstarted grow question 2y ago

My tap water has 500-550ppm TDS out of the tap at 7.4-7.5ph How bad is that? I wish I knew what was in the tap water making it so high TDS/PPM. Don't want it messing with my hydro nutrients...But damn, seems well past normal for a municipal supply.

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AutoflowersSucKanswered grow question 2y ago

I recently came to realize my tap water ppm was 411. I burned my plants as a result. I've never grown in a hard water environment before so i was shocked when i finally tested it. Most of whats in hard water is stuff you want anyways, like Calcium and Magnesium. Just dial back your nutrients to compensate. If your mix = 1600ppm, and your water is 400ppm out of the tap then dial back 25%

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