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No drainage when winterizing Mercruiser 470

rickboater

New member
"I did the winterization thing

"I did the winterization thing on my 1976 Mercruiser 470 the other day and an odd thing happened. When I removed the drain from the freshwater nothing came out but about a tablespoon of water. I poked a paper clip up there to make sure it wasn't clogged, but nothing. I hadn't used the boat for about 3 months, but have used it this season. It did get down in the mid 20's a couple nights that week which is why I did the winterization a little earlier than last year. Should I be worried? Could it be because I had not used the boat for months? Most years I use the boat up until about September then winterize about a month later. What could have happened to the fresh water? Thanks"
 
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