Avoid Problem #1: Debris Buildup Leading to Pump Failure and Clogged Reservoir
With the typical pondless waterfall system as described above, the only "filtration system" is the gravel filled reservoir which the water passes through. Over time the gravel becomes clogged with debris and can cause the pump to fail due to a lack of water flow. Because of the lack of filtration, even with sufficient water flow, the inlet on the pump often becomes clogged with debris leading to the pump burning out as well. Eventually the entire pondless waterfall reservoir will need to be removed, the gravel washed, and a new pump installed. The lifespan for these systems are typically anywhere from 3-7 years depending on the amount of debris falling into the system.