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First, outline the coffee can on the bottom of the bucket and cut INSIDE the lines (so that the can rim can hold up the other bucket). Then cut a hole wide enough for the hose (not pictured). Next you will need to mark the top of the coffee can in the "dirt bucket" and drill a hole so that you will know when the water reservoir is full (the water will squirt out of the side). Notice the slits cut in the coffee can.
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