chain wear
be careful not to mix metals. Electrolysis (never mind the spelling) can destroy a chain, and if it is attached (even near) a outboard motor it can raise havic with it.
We have been using tow chain for trucks, about 20' and it works great. As for the floatation I took some Plastice PVC Pipe, put a cap on each end so it was water tight. and it was good for about four years but then some boat hit it during or just after ice out. I think I like the idea of a rope tied to it. Next fall I am gonna try that. and I will tie it to the boat house. Maybe it can be pulled away.
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