Rain barrels help conserve water; And you can build one yourself
• Never use water from your rain barrel for drinking, cooking, or other potable uses.
• Your rain barrel must have an overflow to a safe discharge point.
Larger or more complex systems
More complex rainwater collection systems have a much larger storage container (a cistern). For rainwater collection projects of this scale, you should consult a professional to review design, construction and safety considerations.
When cold weather approaches, you will at least want to drain the barrel completely of water by using the bottom spigot, and drain all connecting hoses as well. It is also recommended that you then flip the barrel over to drain out any remaining water, and store the barrel and hardware in a protected place over the winter months to keep the barrel in good shape for the following spring.