Barnacles won't grow on a prop that gets run every week or so.


I wish that were true. My boat gets launched in April. It gets "run"
2-3 times a week. By July I have a coral reef on the prop and shaft.
What I cannot figure out is after I clean everything off the first
time in July later dives under the boat and after the water has been
warmer for a longer period of time I hardly have any growth on the
prop. What's with that?