Quick Answer
55-gallon drums can be a safe option for water storage if properly maintained and protected from environmental factors, but they can leach chemicals into the water if not lined or coated correctly.
Types of 55-Gallon Drums
When selecting a 55-gallon drum for water storage, it’s essential to choose a drum made from food-grade materials, such as epoxy-coated or stainless steel drums. These drums are less likely to leach chemicals into the water. However, it’s crucial to check the manufacturer’s specifications to ensure the drum meets your needs.
Lining and Coating the Drum
Even with food-grade drums, it’s still necessary to line or coat the drum to prevent contamination. A 0.5-1 mm thick liner, such as a food-grade plastic sheet or a rubber liner, can be applied inside the drum. Alternatively, a 2-3 mm thick coating of epoxy or polyurethane can be applied to the entire drum surface. This will prevent any potential leaching from the drum itself.
Maintenance and Protection
To keep the water stored in the 55-gallon drum safe, it’s essential to maintain the drum and its surroundings. Regularly inspect the drum for signs of damage, rust, or corrosion. Store the drum in a shaded area, protected from direct sunlight and extreme temperatures. Additionally, ensure the drum is elevated off the ground to prevent moisture accumulation and potential contamination.
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