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PPM problem


 
 
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Old 06-11-2016, 12:36 AM
Forma Forma is offline
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Join Date: May 2016
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Default PPM problem

so my maxibloom says 1 teaspoon per gallon and I have 3 gallons in my reservoir. I add 3 teaspoons, check my PPM and it's like 200? So I just kept dumping in tablespoons until I got around 1000. I'm not sure why it would recommended 3 teaspoons and took me 6 tablespoons. Could my TDS meter need calibration, it's recently new. This happened to my last week when I cleaned the tank also, but I was using the 3 part liquid series and dumped the whole 3/4 the bottle in there before I got the required ppm. Didn't kill my plants or any sign of nut burn. Another questions, when calculating ppm should I be using my tap water base ppm then add it to my after nute ppm to get a final ppm?

Thanks

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