Originally Posted by Chris and Roger
.. Can I get so feedback on a yearly haul out time. Just had it done in fall for survey and bottom was painted. I guess spring would make more sense if the bottom needs painting
I determine when to antifoul by its condition. rather than a set timetable. For example, a long period of wet weather can add nutrient = more growth. You can extend by using a diver who should air/jet wash, not rub or brush the a/f, and he can report a/f and anode condition. Running gear, prop/shaft/skeg is vulnerable to early fouling, that may show up in vibration and reduced speed. You should get a year +, it just varies, if you can gain a few months here and there it all helps with running cost.
We can a/f all year round, I imagine your winter would prevent that, so it may be different for you.