thought it was too easy all together... perhaps have some more water than you need to start out with... "halfstreams" produced when a bucket without a valve overflows... pumps required to move water upwards... buckets that have to have exactly half of their maxium capacity... turbines to power electric devices (ie pumps and sensors and conveyor belts to move buckets mid-level).... could turn into a real mind bender with enough puzzel design!
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