I have a pair of spray totes that we rinsed once and then set aside for two years. Our power is out and we have about 150 poultry plus 500 tomato plants that need water. We can get untreated water from the plant in town for a penny a gallon. Would it be safe to use the totes for this? There's no scent when you open them and like I said we did rinse them out once.