The bottom legs (parallel to the ground) can be replaced with the right sized tube. With some effort, they can be removed from the T connection. If they're not damaged, it might be impossible, but if you cut them short on one side and crush them near the T, you can work them clear. That part's done, and the opening is clean/clear. I haven't got the replacements yet, but pretty confident some dishwashing soap, or maybe WD40 or similar will get them in place. Seems it might work for the vertical members too, but mine are un-damaged.