Q:
I don't know that I would call myself an expert but I do drain to waste hydroponics in rockwool cubes now and have done airoponics, thin film, and DWC in the past. I love your reservoirs they are what I used on my last DWC and are still in my space as the legs and reservoir for my drain to waste system. The problem I had in the past with RDWC was roots in the drain lines. It looks like your lines may be large enough to pull and trim the roots if needed. Go to my thread
Incredible Bulk Adventure for a detailed explanation of the GroDan precision drip system I am using today.
I am subbed in here so I will offer ideas as they come up. It looks spot on to me so far. What nutrient system are you using? In my personal experience I have found that using a vendors complete nutrient line at 50% - 80% of the recommended rates at the PH they state for their nutes works best. I have had excellent yield results with Dyna-Gro and House & Garden. In a taste test conducted by my "chef" friends the H&G won by a small margin of 3 to 2 out of 5 of same strains grown in different nutes. This is a really a small sample and a really subjective subject. It still convinced me to go with the H&G for my current grow.