I made a pvc feeder - it's been sitting in the garage empty. I emptied it because the food got moldy on the bottom, the top area of pellets looked okay but I threw them all out. It is hanging in a dry coop - and it has aeration holes drilled into the bottom. Was it just a freak thing from the moist air of the hurricane weather? Do I need to caulk the seams? Any ideas? Edit: it doesn't look like it, but it hangs approximately 6in. from the ground level.