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Old 08-12-2013
chamonix chamonix is offline
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Re: Air vent for water tank on cs30

Also checked the three air vent holes on the hull near the deck. As mentioned there are three, one port bow, one port midship at the cockpit locker and fuel tank, and one at the center of the stern. Know for sure that the port bow is the vent for the holding tank. Saw the line for the port midship heading for the fuel tank and assumed it was the vent for the fuel tank. That left the stern vent. Was kind of hoping that was for the water tank. Only one thing to do, empty the cockpit locker again, and jam my lardy ass to the stern of the boat. Surprise, that vent turns out to be for the fuel tank, which runs a considerable way aft. So what about the vent at port midship? Whats that for? Traced that vent line, It runs underneath the fuel tank and joins two other lines passing through a hole at the bottom of cockpit locker near the engine.
Down to the access hatch in the aft berth. Yup, there's the three lines coming through the hole. Can't tell which line is which though, but they all lead to the engine. Two are obviously fuel lines. The third ( what is, I assume, the line leading to the vent hole ) runs to a box like structure at the top rear of the engine that looks like a fuse box. So what is this line and what does it do? No idea at this point. Possible some kind of vacuum line? The box it goes to looks like a fuse box not a vacuum valve. Another mystery.
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