hey man...i love the idea... very nice..you could make this automated very easily with those blue drip stakes...shove those down all the way into the top part of the pot and use those 1/2 an hour clay soil drip regulators ..and bam..and or if you need to close the bottom part of top of the pot up..i would use a strip of ducktape on each pot soo it will hold the soil in more..i think im goona build this this week..i love it.. KISS...lol