Hey bear, coco sounds ideal for a drip system. According to that link i posted, you should have like 20% run-off out the bottom of the pot or something each time you water. Does that mean coco could be used in a recirculating drip system? Or would you just have to just discard the run-off? I'm seriously considering trying this out, and i was gonna do hand watering, but I think i'd like to build a drip irrigator. I understand that you only have to run the drip 1 time each day instead of 3-4 like with most substrates.