Solving a mystery leak at the mast partners

For several years now, Eolian has sustained a small yet nagging intermittent leak at the mast partners – where the mast penetrates the deck.  After several failed attempts to locate the leak or to pre-emptively stop it, I removed the interior trim and examined things from below, while it was raining.  And leaking.

I was relieved to see that the water was…

  • not coming down the mast, which would indicate a leak at the top of the boot – one of the places I have very carefully examined several times, and
  • not coming out of the foam deck coring, which would mean a wet deck.  Whew!

Instead, the water was appearing at the joint between the deck ring and the deck.  Tho I have repeatedly attempted to seal between the deck ring and the deck externally, it has never been rebedded.

Read the full post on Windborne in Puget Sound.

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