The experiment:
I have 2 identical setups with 6 plants in each tray. The plants in each tray are the same age, however, the trays contain different strains and are being fed with different nutrients at different feeding levels.
The AK47 in this journal is getting DG nutes at 850ppm and the Dumpster tray is getting GH nutes at 1100ppm. GH is a saltier formula and given the same feeding levels, the EC of my ‘leached’ water is always higher when feeding with GH nutes as compared to DG nutes (measured many times in previous grows).
In this experiment, my AK47 tray being fed with DG nutes will be flushed with Clearex at 10mls/gallon and the Dumpster tray will be flushed with plain tap water. It would stand to reason that if Clearex
did make a difference, the EC of the leached water from the AK47 tray would be equal or greater than that of the Dumpster tray.
On the other hand, if clearex made no difference at all, the EC of the leached water from the Dumpster tray would be greater than that of the DG tray since GH is a saltier formula and is being fed at higher levels.
Let’s get started
Both trays were given a base of around 250ppm (half RO and half tap water). The AK47 tray was given 10mls/gallon of clearex while the Dumpster tray was left alone.
Starting point for the AK47 tray:
Starting point for the Dumpster tray:
Both trays were flooded for 2 hours and at 3 separate times during the flood, I hand-poured res water over the blocks multiple times to leach salts from the top of the blocks.
The Conclusion:
The ppm of the Dumpster reservoir that was leached with plain water was 850ppm. The ppm of the AK47 reservoir that was leached with Clearex was 690ppm.
In the past when leaching these two trays, I’d normally expect about a 200ppm difference between the two and considering the difference is only 160ppm, that tells me that the effectiveness of Clearex over water is
negligible, at best.
I will not be purchasing this garbage ever again.
Final PPM for the AK47 tray:
Final PPM for the Dumpster tray: