1. 

   GreenHoblin Life's too short. Fuckin smile

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   #1 GreenHoblin, Aug 31, 2017

   as the title states I'm wondering what the best way to lower my PPM in my 5 gallon reservoir?
   
   
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2. 

   Steakbomb Marijuanalytics

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   #2 Steakbomb, Aug 31, 2017

   Take some nutrient solution out of the res, replace it with plain pH-adjusted water.

    

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