Major industrial facilities from water resource dams to coffee processing and packaging plants all have the need to utilize water as a cooling source for the power sources of the mechanized automation that they use to provide the product that is their reason for existence. Some, such as hydroelectric plants and other types of electricity producers, have more complicated water intake systems. The operation of the facility is dependent on a properly operating cooling system. To maintain the operational capacity and efficiency of the cooling system, the inlet must be maintained in a clear high flow-through condition. This requires that the maintenance staff be able to determine when debris is accumulating at the inlet grating racks.