Another alternative is to put automotive antifreeze with rust inhibitor in the pump and other sprayer parts. This also protects against corrosion and prevents freezing in case all the water is not drained. Cover all openings so that insects, dirt, and other foreign material cannot get into the system. Finally, check the sprayer for scratched spots. Touch up these areas with pain to eliminate corrosion.
Many pesticides are so toxic that exposure to even a small amount can kill and adult.
Children can succumb to less. Minimize any kind of oral, dermal, or inhalation exposure to chemicals. Below are just a few safety precautions. Read the sprayer operator's manual and chemical labels to review recommended procedures for safe use of chemicals and the equipment. Never allow them to play in pesticide-treated fields or in areas where the chemicals may be spilled.