Here are the steps on how to connect a rain barrel to a downspout:
Prepare your tools and materials. You will need a hacksaw, a drill, a hole saw, a downspout diverter, a downspout flex elbow, and galvanized screws. You may also need a level and a measuring tape.
Locate the downspout that you want to connect the rain barrel to. It is best to choose a downspout that is located near your garden or yard.
Measure the height of your rain barrel. You will need to cut the downspout so that the rain barrel can fit underneath it.
Cut the downspout with a hacksaw. Be sure to wear safety glasses and gloves when cutting the downspout.
Install the downspout diverter. The diverter will help to direct the water from the downspout into the rain barrel. There are different types of diverters available, so be sure to choose one that is compatible with your rain barrel.
Here's one of our favorite rainwater diverter systems: from OATEY
Allow the rain barrel to fill with water. Be sure to check the overflow valve to make sure that it is working properly.