Old hoses and damaged parts should be replaced. Don't try to make major repairs yourself. Avoid pressure buildup. Allow for expansion. Keep tanks coated with white paint.
White paint reflects sunlight and keeps tank temperature down.
Also keep weeds mowed, and eliminate other hazards that would heat anhydrous ammonia containers and cause a pressure buildup. Have water available. In case of accident, water is the most important element in first aid. Eye treatment must not be delayed. Carry a plastic squeeze bottle of fresh water in your pocket for instant flushing of your eyes until you can get to the 5-gallon tank mounted on the farm vehicle.