What is this black button on the side of my boat? There are two

Royalwapiti

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Jun 26, 2015
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19
New to boating and I noticed I have 2 black cap type things on the side of my boat. There's an opening on the bottom side. Can you tell me what they are?

 
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alldodge

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Mar 8, 2009
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40,581
That is a vent line, could be water or gas tank. Should have a hose connected to it going to a tank
 

jbcurt00

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Oct 25, 2011
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Does your boat have 2 seperate fuel tanks?

It looks like a fuel tank vent.
 

Royalwapiti

Cadet
Joined
Jun 26, 2015
Messages
19
OK, it makes sense that they are a vent line. This one is up near my live well, the other is back near my fuel tank. Thanks
 
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