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Old 06-28-2020, 07:50 PM   #1
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Help me identify this device!

This was located at the bottom of a port fuel tank on a year 1986 boat. There was an identical device at the bottom of the starboard tank as well. Any ideas?Click image for larger version

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Old 06-28-2020, 08:00 PM   #2
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It appears to be some type of priming pump.

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Old 06-28-2020, 08:09 PM   #3
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I though so at first too. But it is only connected to the tank.
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It appears to be some type of priming pump.

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Old 06-28-2020, 08:28 PM   #4
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Greetings,
Mr. b. I would guess some sort of sump/drain fixture. Nice to have.
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Old 06-28-2020, 09:59 PM   #5
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A pump to purge the tank of water?
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Old 06-28-2020, 10:19 PM   #6
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A pump to purge the tank of water?
Maybe. But where does it pump to? And what is with the chain? Seems like the plug or nut on the bottom is meant to be removed and replaced since its attached by a chain. But why would you need a pump at the bottom of the tank?
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Old 06-28-2020, 10:59 PM   #7
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Looks like a scuttling device to me.
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Old 06-29-2020, 10:04 AM   #8
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I too think it’s some sort of drain at the bottom of the tank. I’d guess that you remove the chained plug in the bottom, then push the plunger down to open the valve and drain off any water or other crap
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