"STORE" refers to the lower tank, which collects newly generated water from the air before it has passed through the filters. "ALLOT" refers to the upper tank, which holds water that is ready for use. While the unit is condensing, it attempts to bring the "STORE" level up to 4, drop by drop, so that the booster pump activates and sends the water through the filters into the upper "ALLOT" tank, where it is ready to be consumed. NOTE: To raise the "ALLOT" level by 1, it is necessary for the "STORE" tank to go through 2 cycles.