Some issues
Keel inspection - yes, every year. Even in fresh water, need to check the hanger bolts to make sure they are tight. Can be removed individually, sprayed with LocTite, and put back (Catalina Direct).Fresh versus Salt Water - Have a 79 Cat 22 that spent lifetime in fresh water. When dropped and inspected keel, still all original parts. They were still sound.Dropping the keel - Two questions; how much do you like to work? Not a lot? Pay someone to do it. Second question - how much are you willing to spend? If you are the Frugal Sailor like myself, then you will save, literally, thousands of dollars, doing it yourself. Recommendation: Spend $20, and get Catalina Direct's "Dropping the Swing Keel" instructional video. It will give a you a very quick appreciation of how much effort will be required. It is also a very good way to safely, and easily, drop the keel. It was, surprisingly easy. Took two of us to take it out, and two to put it in; three hours out, and four hours in (had trouble lining up the keel hangers with the bolt holes - the boat had canted/settled a bit on the trailer while the keel was out). I really enjoyed myself - but I like working on my boat. If you are a "Do It Yourselfer" then I highly recommend getting on line with Catalina Direct. They have all of the parts, a technical support line, and plenty of instructional material for doing almost any repair you can think of, on your Cat 22 or Cat 25. Catalina Direct link right below...