Day 1: Went out to check the system since it rained last night. The CF was 14. CF stands for Conductivity Factor by the way and it is a measurement of the ion content in the water from the hydroponics plant nutrients which are all chemical salts (a salt is just a chemical compound that disassociates in water like common table salt although that would not be a good plant nutrient).
I added a circulation pump to the pool since I don't want to get mosquitoes. A few years back when I ran a tub float system with just aquarium aeration I got little squiggly mosquito larvae wiggling around in the nutrient and that really turned me off. I figure with a robust pump circulating the water that might not be a problem. It was funny though because the circulation caused the floats to start turning too.
I added a quarter cup of white and blue nutrient concentrate to bring the CF up to 16. The plants looked a little beaten down. We're planning to rototill a plot for a conventional garden in the backyard and grow corn, squash, and the rest of the tomato plants that are currently growing on the screened in deck in rockwool cubes.
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