Posts Tagged ‘check-valve’

Hydroponics phase 2 completed

I recently concluded a couple upgrades to the hydroponics rig. Improvements 1) Conversion from constant-flow to fill-and-drain I read various internet post about some of the benefits of fill-and-drain design over the constant-flow design. Each has its merits, but I like the idea of servicing drained planters, and managing the nutrient liquid when all liquid is…

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