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Prop anti-fouling gadget
Hetre in the Fl panhandle, I do not sail in Summer, it is too hot with almost no wind except in Thunder-storms or hurricanes. Consequently, my poor boat sits growing stuff on the prop. I used to put on mask and snorkel and clean it before use but the sleazy water and presence of alligators discouraged that.
I do have a guy who uses scuba to scrub the bottom from time to time but that does not prevent the extreme rapid growth of stuff on my prop.
So...........other sailboaters must have this problem too ........
OK, here is my latest scheme.
A 5 gal bucket with most of the sides and ends removed to allow it to easily move thru water. Inside, I put poly mesh that has a silver coating on it. The silver is a great biocide and the actual amount is very but has high surface area. It does not entirely obstruct movement of water but slows it down a lot so a sufficient density of silver ions builds up in the enclosed volume.
The trick is to get it onto and off the prop from the dock. Here is how it works. On my boathook, I have a powerful rare earth magnet. Attached to the inside of my 5 gal bucket is a plastic coated piece of soft steel so the bucket adheres strongly to the boathook.
The open end of the bucket has the lid cut so half the opening is exposed allowing one to slide it over a prop but orient it so the enclosed part catches behind the prop. From the dock, slide it over prop and pull the magnet off.
Note, there is a long poly line attached to the bucket that should be tied to your throttle so you cannot engage the throttle without knowing the bucket is there.
Bucket is removed in same manner it is put on.