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Hi all, i'm new to forum. Thanks for having me.

I have an odd problem with my whale in-line pump i can't diagnose or find an answer here for:

I use a 12 volt inline pump as my main galley pump, I know they're intended to be supplemental to a larger pump, but my boat came with this set up and it worked fine until recently.

Now, though, when i press the foot pedal, it functions fine for about five seconds, and then the water flow stops and the pump seems to be running dry. If i wait another 15 seconds or so, it runs again, but only for another five seconds, and so on and so on.

I checked the intake hose, and the water runs strongly out (it's below the tank level), so there doesn't seem to be any blockages. When it runs for the 5 seconds, the water comes out clean and full strength, then stops instantly. It doesn't trickle out or anything.

It's possibly notable that it did start doing this after a cold snap in which temps got down to about 20 at night. However i never operated the pump until the temperature warmed back up a few days later.

Any ideas?

Thanks,
Steve
 

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578 Posts
Pull the pump out & bench test, looking for pump leak, good chance you have a hair line crack that opens when the pressure builds. May also be in the faucet fitting.
 

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2008 Jeanneau 39i S/V Grace
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785 Posts
Also check the air valve. It should run from somewhere on top of your tank to a deck vent. If clogged, it will stop flow.
 

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626 Posts
Is this an automatic pump with a integral pressure switch?

If so, I'm wondering if you have some ice still in the line past the pump to the facet?
 

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Master Mariner
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9,004 Posts
If this is the double action foot operated diaphragm Whale galley pump, you probably have a ruptured diaphragm. No biggie, they should be available at most chandlers. If it's not, post a pic.
 
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