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Old 11-01-2010
MC1 MC1 is offline
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No way I would let my fiberglass "significant investment" get locked in ice if I could prevent it. I've read of steel boats wintering-in this way much further north, but I think it's too risky with fiberglass. Our marina in Lake Ontario uses bubblers in a few places (to protect underwater electrical conduits coming up to the dock) to good affect with 6 - 8 foot water depths. Keeping the water moving appears to be the crucial thing. On a really really cold night, a thin surface coat of ice might still form, but each time I looked anyway, the bubblers had it broken up by noon. Even with bubblers, I'd still be nervous they'd stop (e.g., power loss) when I wasn't able to check on them.
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