Yes, he's using masterblend and it's set up to constantly flow over the roots in the net cups. Each trough has a shutoff valve and he uses that to control the flow. He has a 250 gallon tote buried in the ground and it all gravity feeds back to the main tank. He fills that tank with another 250 gallon tote in the main greenhouse that also fills the reservoir for all the dutch buckets. The liner is thick black plastic but he's looking for something thicker.
He's a Buddy of mine and I was there yesterday bumming drip tape parts from him and stealing cucumbers. Thanks Danny!
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Rob
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