If you are shooting for a ppm of 1000 when mixing nutes and your water ppm is 150 ppm do you still shoot for 1000 or 1150?
Just don’t count the 150 in the final numbers. You’re good.
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Thanks for the reply .i’ve always been curious about that what most do.
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COVERTgrower is correct.
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I have never checked ppm or will I ever. I think it’s bunck.
Happy growing…
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I can’t give exact numbers because every grow medium, non medium, nutrient schedule, nutrients, and grow style is different.
Jacks 321 schedule is approximately 1200 ppm.
Organic growing can have over 5,000 ppm.
If you have a more specific question I’ll do my best to answer it.