#water_gauge__watergauge__water_gage__watergage__waterglas gauge for indicating the level of water in e.g. a tank or boiler or reservoir
supertype: #gauge__gage a measuring instrument for measuring and indicating a quantity or for testing conformity with a standard
subtype: #water_level.water_gauge a water gauge that shows the level by showing the surface of the water in a trough or U-shaped tube
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