L
Laredo7mm
- 20
- 3
I did a search and couldn’t find what I was looking for, so apologies if this has been asked before. If it has, could you link me to the discussion?
Using hydro buddy I made up a formula of adding 13.5 grams Jack's part A, 5.33g part B, 45ml calimagic, and 20ml GH Bloom. All mixed into 5 gallons of RO water. The estimated E.C. Was 1.5. I measured with my 0.5 scale ppm meter and it came out to be 1500 ppm.
I also mixed up 5 gallons of Jack’s 321 using RO water, 18g part A, 12g part B, and 6g Epsom salts. The predicted ppm should have been around 730, but I measured around 880.
To test the meter, I mixed 1g of kosher salt in 1 liter of RO water and my meter read 990 ppm so it looks like the meter is ok.
What is causing the discrepancy? Are there other things in the nutrients that cause the E.C. to be higher than what is calculated? If there is, how do you mix nutrient strength based on E.C.?
Using hydro buddy I made up a formula of adding 13.5 grams Jack's part A, 5.33g part B, 45ml calimagic, and 20ml GH Bloom. All mixed into 5 gallons of RO water. The estimated E.C. Was 1.5. I measured with my 0.5 scale ppm meter and it came out to be 1500 ppm.
I also mixed up 5 gallons of Jack’s 321 using RO water, 18g part A, 12g part B, and 6g Epsom salts. The predicted ppm should have been around 730, but I measured around 880.
To test the meter, I mixed 1g of kosher salt in 1 liter of RO water and my meter read 990 ppm so it looks like the meter is ok.
What is causing the discrepancy? Are there other things in the nutrients that cause the E.C. to be higher than what is calculated? If there is, how do you mix nutrient strength based on E.C.?