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01-05-2008, 10:55 PM#7
Senior Member
how do you figure out PPM?
Right on
Originally Posted by Opie Yutts
I know mine are just for hydro. And PPM is a calculation based on what EC reading your PPM meter comes up with. Ebay usually has the best deals, and remember you usually get what you pay for.
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- Art & Graphic Design
- Science
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- Cannabis Pictures
- GreenGrassForums Lounge
- News, Politics and Legal
- Sponsor Forums
- Medical Marijuana Methods and Strains
- Growing
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- Arizona
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