Chicken feeder base for 4-inch schedule 80 PVC

After finding a base for a chicken feeder on Thingiverse that was very flimsy, I decided to redesign. This base is meant to hold 4-inch, sched 80 PVC pipe. I cut the bottom off of a spackle bucket and used the newly formed "tray" to mount this hopper base. I then screwed all pieces together using 1.5" outdoor screws; hopper base to tray (on a block of 2x6 to capture screw tips and elevate the tray) and PVC to hopper base. It holds about 8 elbeez of food. I pre-drilled the sides of the hopper bas