Old School “Flushing Muffs”

   It’s true, most boaters flush their boat engine on land, using Old School “Flushing Muffs”. In short, freshwater enters the flushing muffs at the out-drive intake vents to the pump then flushes through the cooling system. Unfortunately, most flushing muffs don’t make a perfect seal or can slip off the out-drive causing air to enter…

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