He Lined the Bottom With Pea Gravel
Wayne also lined the bottom with a layer of pea gravel. This was incredibly important because the container needed a soft place to lie on while also being able to filter through to the soil below.
At this point, I think you know what he had planned for the container and the hole, but what was the goal of his project? Well, there’s a reason that he wanted a bit of extra room above the container.