Long-term water storage requires careful planning and execution to ensure the water remains safe and potable. This involves selecting appropriate containers, proper water treatment, and ideal storage conditions.
Choosing the Right Containers
Several container types are suitable for long-term water storage, each with advantages and disadvantages:
- Food-grade plastic: While convenient and relatively inexpensive, plastic containers can leach chemicals into the water over time. It's crucial to use food-grade plastic specifically designed for water storage. Filling containers to the top minimizes air space and reduces the chance of contamination. [Source: Utah Department of Environmental Quality]
- Glass: Glass is an excellent choice as it's inert and won't affect water quality. However, glass is heavier, more fragile, and potentially more expensive. [Source: Quora]
- Stainless steel: Considered the best option by many, stainless steel is durable, non-reactive, and won't impart any flavors or chemicals. However, it's significantly more expensive than plastic or glass. [Source: Reddit]
Water Treatment for Long-Term Storage
Proper water disinfection is crucial for long-term storage. A simple and effective method involves using household bleach:
- Bleach disinfection: Add 4-5 drops of unscented liquid chlorine bleach (4-6% sodium hypochlorite) per gallon of water. One teaspoon of bleach disinfects 5 gallons. [Source: Various sources including Reddit discussions] This kills harmful bacteria and prevents contamination.
Storage Conditions and Rotation
Optimal storage conditions prolong the water's shelf life:
- Cool, dark place: Store containers in a cool, dark, and dry location, away from direct sunlight and extreme temperatures. Temperatures between 50 and 70 degrees Fahrenheit are ideal. [Source: Family Handyman]
- Rotation: It's recommended to rotate your water supply every 6 months. This ensures you're always consuming relatively fresh water and prevents the buildup of potential contaminants. [Source: Reddit]
- Labeling: Clearly label each container with the "drinking water" designation and the storage date for easy tracking and rotation. [Source: CDC]
Water Storage Quantity
Determine your water storage needs based on your family size and anticipated duration of any emergency. A general guideline suggests one gallon of water per person per day. [Source: Valley Food Storage]
Example: 55-Gallon Water Storage
For a family of four, a 55-gallon barrel could provide enough water for approximately 14 days. Remember to follow all the above guidelines regarding container selection, water treatment, and storage conditions. [Source: More Prepared]
