List: trawlers@lists.trawlering.com
From: scaramouche@tvo.org
Re: TWL: Re: Intro and question re wintering
Tue, Oct 16, 2001 1:04 AM
Mark:
Be careful with the throughhulls. I saw one boat go down here
because during a coldsnap the gatevalve (not the throughull) froze
and cracked. When the weather warmed up the lake came in....
The boat was a 20+ ft powerboat and the gatevalve (bronze, unused in
the engine compartment) had been closed but not protected against
freezing. The much maligned lightbulb method would have prevented the
disaster.
The boat was in the marina, used as a liveaboard and continuously
bubbled. The freezing occured from the cold air getting at the valve
(top-down), not from the water (bottom-up).
George of Scaramouche1, Lake Ontario, Canada
As a separate attachment, just for you Mark, Im sending a picture of
the cracked valve (not allowed to send enclosures on list) - Gg