The original (cheap) factory paint is basically sprayed over bare metal, with very little surface prep work. It is then oven baked dry too quickly which hardens the paint and makes it brittle. Good for a couple of years, then it flakes and peels. Lawn equipment is not painted like a conventional automobile.
The paint is very poor quality on just about every CC that I have seen in recent years. I usually catch them before the rust get terrible and sand them down, then brush paint them with POR 15 (epoxy) restoration coating.
After that, spray them good ole' yellow Krylon paint that is close enough to CC yellow.
Blowing them off with shop air and a long wand works very well and avoids the excess water sitting too long. A leaf blower also works very well.