Using a EC-pen (TDS digital tester). Also have a bottle of PPM 800 solution. When & how do I use this stuff? I didn't come with any directions.. I have no clue. Do I test the water before I adjust PH levels or before I add nutrients to the water? How much water do I use, how much solution do I use? Please help me...
williebounce Reviewed by williebounce on . EC pen, TDS question???? help!! Using a EC-pen (TDS digital tester). Also have a bottle of PPM 800 solution. When & how do I use this stuff? I didn't come with any directions.. I have no clue. Do I test the water before I adjust PH levels or before I add nutrients to the water? How much water do I use, how much solution do I use? Please help me... Rating: 5