I need to build 20 of these things, and I want to build them to last, and perform. I am using 4 of them right now, and already had to replace the drain fittings. Some of the features I am wanting to implement are: Shut off valves on all intake and return lines. Quick Connect, or similar type fittings. A detachable 2x2 screen. A mechanism to be able to raise the plants in order to clean buckets, check roots etc... I would like to see people contribute ideas to create the ultimate buckets! I could sketch up a bucket and we can alter the drawing as needed.