Re: Tube with a hole
Personally in my opinion, you're out of luck because rusts never sleep. They're like cancer, they continue to eroded metals. I have not seen any effective rust prevention on the market today. 99% of them are just temporary solution and rusts will eventually come back and erodes metals away.
On other hand, I've seen bathtub insert / liners but in your case, they're useless too because your existing bathtub is rusting away.
edit...damn...A Spruce types faster than me....
"Life does not go by the book, we learn as we go along".
You only need two tools in life - WD-40 and Duct Tape.
If it doesn't move and should, use WD-40.
If it shouldn't move and does, use the Duct Tape.