It is recommended that you install an AWG Check Valve Assembly between the pump and the outlet pipe. The check valve will prevent the FilterFalls from draining when the pump is turned off.
Koi can be very hard on your plants because of their persistent rooting habits. They will root around looking for insects and larvae to feed on. Any valuable plants should be planted in tubs, which are then placed in the pond.
Pump Discharge Kits for all Direct Drive Pumps. 
