Create Drainage Holes
By creating several rain barrels you can save enough water to help you get through the hot and dry summer months. A 55-gallon plastic drum with an intake hole cut in the top will work well.
Creating a drainage hole toward the top of the barrel will enable overflow water to escape. A hole toward the bottom will allow you to drain captured water for use around your home. Use a 1 1/8-inch spade bit to create the bottom and top drain holes.
The size of the hole you cut in the top will be determined by the size of the filter basket you plan to use. Allow enough room for the basket’s lip to rest on top of the barrel so it won’t fall in. The diameter should be large enough to accommodate the downspout extender tube. By drilling a starter hole, you can slip the blade of a jigsaw in more easily.