I have been adding Grow Research Drive into my nutrient tank since day 1. Today I wanted to see how much of a difference it made to EC.
I put in my Coco A and B tested the EC then added drive and there was no change to EC value. I must be confused to how EC works.
Can someone explain please?
How much are you adding, and into how much water?
Sorry should have mentioned that. 20ml per 10L
Not familiar with the nutrients , but it looks organic (kelp and algae) , the EC will not measure organic molecules like Urea , Ammonium and etc . Most of the organic things are not fast acting and they are poor water soluble , meaning they are provided as big molecules and needs to be broken by the living bacterias in the soil , those numbers are telling you after the compound break out in soil what will be the analysis . With EC/TDS you measure soluble salts you cant measure organic molecules .
Another thing from big importance is to have EC meter with temperature compensation , EC readings are totally different on different temperatures , not even close . If you dont have one with temperature compensation the correct reading will be on 25 C (for NaCl TDS/EC Meters) .