I live in a 1940's pre-war 6-story apartment building. It's a coop and I own my unit, so I am responsible for all maintenance within the walls, but not inside the walls that belong to the building.
There is a heating pipe in the bathroom that runs from the floor to the ceiling. Last winter, after having lived here for 7 years without a problem, I started to have grit falling out from the gap between the pipe and the sleeve that holds it.
I know that I can't fix the root/source of the problem, and all I can probably do is figure out some way to prevent the dirt and grit from actually falling on the floor. Can anyone think of a way to fashion some type of metal sleeve/tray that can be attached to the top of the pipe near where the grit is falling, like a gutter would catch leaves?
Last winter I did try to stuff steel wool in the cracks, but the steel wool falls out and even before it began to fall out, it didn't seem to work.
I am attaching photos so it will be easier to understand the problem. I appreciate all your ideas. Please excuse me for asking a question like this; I'm sure many of you who are good at fixing things would never put up with a stopgap measure like the one I am asking for.
Thank you in advance for any help you can provide. Images are in links below. You might have to copy and paste them since I am a new user and may not be allowed to post links yet.