This is the way the instructions said to set the rain barrel up. In a heavy rain the water bounces off the top. When it is full the 3/4 inch drain was
not large enough to get rid of the excess water.
So Bob (my handy gardener) cut a hole for a larger drain. Then he put the gutter into the rain barrel. Now it works great!
Here is a close-up view. Does anyone know if it is safe to use the rain off the roof on the vegetables? I do use it on the flowers and bushes. Our shingle roof is nine years old.