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Old 09 December 2005, 16:36   #21
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Quote:
Originally Posted by codprawn
What message??? Please explain it to me oh Hugh one......
i think you need to work that one out yourself, Garf gave you a strong hint.

lets just say Keef is not amuzed...
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Old 09 December 2005, 16:38   #22
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Quote:
Originally Posted by Hugh Jardon
i think you need to work that one out yourself, Garf gave you a strong hint.

lets just say Keef is not amuzed...
So why did YOU have to stick your oar in as usual????
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Old 09 December 2005, 17:24   #23
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Quote:
Originally Posted by codprawn
So why did YOU have to stick your oar in as usual????
i guess it is cos i have an oar (or two) cos i have a boat and they come with oars....

anyway not going to waste time tooing and froooing with you on this thread as is pointless

keef and garf said their bit..

i've got bigger fish to fry....
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Old 09 December 2005, 17:29   #24
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Its also worth noting, even without earth leaks, or stray current or welders etc, natural potentinal differences exist between various metalic objects ,below the waterline.
If you have 2 dissimilar metals in saltwater, enough potential difference exists for current flow, and elecolysis to happen, no matter what the causes are, the onus has to be on the individual to provide their own protection with galvanic anodes, you could have a steel hulled boat ,tie up against an alum hull, whose fault is that, and so on
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Old 10 December 2005, 11:31   #25
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I think Mollulnan could have a point. I have seen boats which have been kept on swing moorings, with similar problems of corrosion. One boat was left with the battery isolation switch left on. This caused the outdrive to become positively charged from a small short to ground and corroded the anodes away in a matter of weeks!!
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Old 10 December 2005, 17:52   #26
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Another small point, for the amount of damage caused the boat must have been left in the marina un-checked for a considerable amount of time. We had a Philipino engineer on the ketch, we would bung him over the side fairly regularly with a mask and snorkel on to check that all was well. Barnacles and growth on the raw water intakes were a bit of an ongoing prob. Even on shore power the A/C units required raw water for heat transferal. We see a lot of boats in the marinas in Cornwall with absentee owners. They pay to have them made ready to go in the spring, they don't use them at all and leave the marina all summer and then they pay to have them hauled out in the autumn looking dreadful.
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