Designed to be used with a regular mouth mason jar. Fill a mason jar, place the watering board on top of the mouth of the mason jar, then while holding the two together, flip them over and place them on a level surface. The water will flow into the trench and be kept full by the mason jar. The trenches are shallow enough that the bees will not drown.

NOTE: Print in light-colored material to reduce heat collection and thus evaporation.

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