I had to shut down all projects due to moving, and putting the house on the market. I just sold my homemade hydro-aero garden, and HPS light. Sad days.
I made a real good design where I used a series of tubs as the reservoir, and used huge plv pipe, with drilled holes for net-pots. I had flood drain I could adjust height for different styles of feeding like: NFT, Flood and Drain, or I could slide in misters.