concrete pool repair

Our community pool is approaching 50 yrs old and is concrete with a painted surface. Each yr the board hires a guy to repaint. This painting process involves chiseling out old rotten concrete on the floor of the pool, patching it and repainting with rubber based pool paint. This yr I'm the guy they hired to do this. I'm pretty handy around the house, but I'm a homeowner, not a pool repair technician. My plan is to remove the old rotten concrete, patch with hydraulic cement and repaint the entire pool. Is the correct procedure? I've read about replastering but I don't think this pool has a plaster finish. Thanks for any help.

The correct procedure, given a 50 year old pool with rotten concrete and a low "get us by till next year" budget?

Sounds like your approach is good as any. I'd just recommend you remember you are PATCHING, and not really 'fixing' the pool. Where there's a little rotten concrete, there's often a lot. And if you get carried away removing bad stuff, you're likely to go over their budge in a heartbeat.

A "correct" approach would involve removing all the old paint and rotten concrete, repairing what needs -- which you wouldn't know till you exposed everything -- AND collecting enough money all along, so when they decide, "Gee, we can afford this", you can walk away without having taken a bath yourself.