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baDumbumbum
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It is probably a good idea -- tho bugs are not gonna hurt you.;) W drink & cook with rainwater here, and more than a few crawlies get past the screen. Dead mice, those get kinda rancid. We try to avoid those. :eek:

Your tank vent terminates inside the boat? An easy solution is a scrap of fiberglass screen wrapped over the end of the tube. Might need a barbed fitting inside the hose if it is flexible. Also, people recommend terminating the vent where spillage wont drip onto electronics, etc. We're contemplating a tank whistle, too -- but I'd like to know if those wheeze like a calliope when the tank contents slosh back & forth. Can anyone give a yea or nay on that?
 

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baDumbumbum
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1,142 Posts
We'll be putting a screen on ours. Save a cockroach! ;) Here's a thought to prevent overfilling, for those with internal vents: what about a ball-float check valve in the vent line? Air goes around the ball, but when water reaches it, the ball floats up & closes the vent. When dock hose starts spraying all over your Topsiders, the tank is full. Downside is it leaves the fill pipe with standing water in it. I'm still thinking a whistle might work better, but even then, you only have a few seconds to shut off the fill line.
 
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