yes 10lbs of dolimite/garden lime under the bins... cal-mag and buffering the ph of a bog.. just the first year then mixing lime in by hand after that. It works great been at it for years now...lol The tube/tube is instaginifcent...you need to get at least 18" of soil above the waterline... rubbermaid, homemaid,tires(seems extreme weight wise) but no bottom is what is so nessisary the promix or coco sucks the water right up no problem...
Organic great but it takes alot of organics for 30 gals of soil mix... or osmocote...1 cup for 15gals of promix/coco, I like a few cups of kelp also...