Flooding Battery Compartment

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SPICA
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Joined: 7/31/20
Posts: 1
Flooding Battery Compartment

We are endeavoring to make our battery compartment under the aft game table seat water tight as it floods on port tack with water coming from bilge - into the area under the drawers - up the hull -through holes into the battery compartment. 

On our 1985 boat there is a set of holes in the bottom of the compartment where alternator wire had been run, and now holes in the top where new alternator wire has been run. There are also 2 holes that communicate with the bilge in the compartment under the drawers forward of the nav table with wires running through it. 

Does any one know if MKIs came from the factory with holes in the compartment under the aft game table seat?

Did they come with the hole between the under drawer area and bilge?

Others have suggested plugging the holes in compartment under aft game table seat so I assume this is safe to do. Can the hole under the drawers compartment which communicates with the bilge be plugged too or is this needed to permit drainage to the bilge? 

We are considering moving batteries to a box under the nav chair, but it seams like most C36 have batteries in the same compartment we do now without flooding issues. 

Thanks,
-Mike

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Chachere
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Joined: 10/27/10
Posts: 825

See this thread: www.catalina36.org/forum/technical-discussion/water-battery-box
Short answer: seal up the holes in the battery box where the cables enter (especially from the area under the nav table), and plug up the hole under the drawers to the bilge.   One of the very rare times I've found silicone sealant to be useful on the boat.
 

Matthew Chachère
s/v ¡Que Chévere!
(Formerly 1985 C36 MKI #466 tall rig fin keel M25)
2006 Catalina Morgan 440 #30.
Homeported in eastern Long Island, NY

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