Can You Add Ammonia Camper Refridgerator?

Can You Add Ammonia Camper Refridgerator? Basically, your RV refrigerator takes two liquids, ammonia and water, and separates them using the distillation process. The boiler assembly heats the two liquids in the refrigerator holding tank. The ammonia is the refrigerant, and the water simply transports it. How do I check the ammonia level in my