Air gap intake restoration

Thanks again @CudaChick1968, I sincerely appreciate it. The cabinet is my works and it's rarely used, only when the mechanic shop is rebuilding pumps. I'll double check what material they use in the blaster, hopefully they've switched from sand since the last time I used it about 7 years ago. Perhaps if they've not changed, I could do a little convincing to the shop supervisor to switch to something more health friendly.