I rigged up a 55 gallon drum with a bilge pump. Cut a 6x6 hole in the side of the drum, used a couple hinges and made a door. Drum lays in the FEL bucket, hook the pump to the tractor battery and have an enough garden water hose to transfer water to the sprayer. Oh yeah, I got the pump in a 5gal bucket paint strainer bag to keep debris from clogging the nozzle.