Hi Ken, this is the first time I've seen the Alaska grow bucket system, but it is extremely similar to a system that I've detailed in other posts over the past few years. The difference is that the Alaska system needs only 1 bucket (and thus maxes out probably at 4 gallons of media) and requires direct contact between the water and the bottom of the soil. You must be sure that all buckets are exactly level with one another and set the float valve perfectly. After figuring out the proper float valve level, I would mark the corresponding water level on the float valve reservoir and check in regularly as in my experience the valve can slip over time.
I think that this system is a great option for people who have small gardens and no outdoor water source (I'm my case, I grew on an apartment patio). I used a large trash can as a main reservoir and filled it up once a week either one 5-gallon bucket at a time from the bathtub or by rigging a garden hose to the kitchen faucet.
Where there's a will there's a way!
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