Long-time reader, first time poster. Thanks for all the information gathered over the years. Now I have a real stumper and need some help.
My 1980s pool is starting to seriously show its age. Specifically, the coping is rusting heavily, and can no longer be ignored. (OK, it probably shouldve already been taken care of long ago...)

The coping is metal. I'm guessing steel. In any case, its rusted so badly that this winter it's started to pop off the plastic caps that cover the joints. In fact, it looks like the previous owner (i've been here 3 years) has had this problem before and used some sort of compound to cover up the joint issues, with middling success. See below.

Any idea about the steps I need to take? Here's the plan I've made to address this. Your thoughts welcome.
Alternatively (or additionally), I've thought about covering the offending coping with new coping. I see that there are brick coping products that cover existing, but it looks like that then requires much additional deck work. Any other options for a cosmetic improvement after I do the rust work?
Thanks for any help you all can offer. This is a wonderful forum.
My 1980s pool is starting to seriously show its age. Specifically, the coping is rusting heavily, and can no longer be ignored. (OK, it probably shouldve already been taken care of long ago...)

The coping is metal. I'm guessing steel. In any case, its rusted so badly that this winter it's started to pop off the plastic caps that cover the joints. In fact, it looks like the previous owner (i've been here 3 years) has had this problem before and used some sort of compound to cover up the joint issues, with middling success. See below.

Any idea about the steps I need to take? Here's the plan I've made to address this. Your thoughts welcome.
- Remove as much loose rust as possible, using a floating plastic sheet to catch falling debris from landing in the pool.
- I've ordered some POR-15 to Metal Prep and Rust Preventer to address the rust.
- Apply white paint to the treated areas. Should I use POR-15 Top Coat? Is there another product that someone recommends?
- I'm unsure of how to cover the joints following this work. The plastic caps are embedded in the concrete, which I can't replicate. Ideas?
Alternatively (or additionally), I've thought about covering the offending coping with new coping. I see that there are brick coping products that cover existing, but it looks like that then requires much additional deck work. Any other options for a cosmetic improvement after I do the rust work?
Thanks for any help you all can offer. This is a wonderful forum.