Growmanji Solar Powered Bait Well Pump (Aerator) Growmanji Solar Powered Bait Well Pump (aerator). Adaptable for other hydroponic systems, Koi ponds, ponds, bait wells or varies aquatic systems and bait wells. 6 foot detachable cord for extended reach. Water resistant PVC casing with diaphragm pump (2L/M), water resistant solar panel. NOT SUBMERSIBLE