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post #6 of Old 11-02-2009
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My understanding is that there is no need for water supply for cooling on a sailboat with a PSS shaft seal. It's only required on higher horsepower power boats.
The only hose attached to a sailboat PSS shaft seal is an air supply tube to prevent air lock in the bellows. That tube goes upwards above the water line, not down to a seacock.
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