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2
MISTAKE
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Installation below the sea level without a proper cooling pipe goose neck and vacuum
siphon break valve.
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If the set installation surface is just a little below the external sea water level but can
be guessed that while sailing the difference is further increased, must be foreseen an external
goose neck pipe with siphon break valve, on the contrary drop by drop an internal leakage
through the pump clearance, fills the exhaust pipe with the same above explained result. For
relevant level difference the leakage occurs when the boat is not sailing too.
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The vacuum siphonbreak valve must be fitted out of the hood, on a prolonged pipe, as
more high as possible and in any case above the sea level, in connection to a cooling pipe at
the engine pump delivery side, namely in pressure zone. On the several sets the pipe to be
prolonged can be different, but each one chosen at the pump delivery side, is suitable.
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