Even a small amount of rain will generally fill a rain barrel to the point of overflowing and do so in a very short period of time. The potential for collecting additional rain can be lost if you have limited capacity for rainwater storage. If you have a minimum of additional space next to your rain barrel, simply connect an extra barrel by means of an overflow tube near the top of your current rain barrel. This will allow you to collect additional amounts of rainfall from the same rain gutter.
By adding additional rain barrels to your gutter drains in this manner, you can harvest extra rain water with very little effort.
Got rain water storage?
Staying above the water line!