Any updates yet?
1990 3807 Head Fresh Water Pump
- buster53
- Admiral

- Posts: 1170
- Joined: May 12th, 2017, 10:41 am
- Vessel Info: 2001, Carver 356
- Location: Gwynn’s Island, VA
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- chuck1869
- Scurvy Dog

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- Joined: July 12th, 2025, 1:53 pm
- Vessel Info: 1990 3807
- Location: New Buffalo MI
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Re: 1990 3807 Head Fresh Water Pump
Thank You All! I have some clear guidance that I truly appreciate!KyleR wrote:QR_BBPOSTAlso, some freshwater pumps, like our Shurflo Aqua King 2, have a pressure switch AND a bypass valve built into the pump, both of which are adjustable via a very small allen wrench. We had an issue with ours running for no reason and I ended up tweaking those setpoints until it operated correctly. There are videos on YouTube showing how to make the adjustment.If your fresh water pump doesn’t stop running, you’ve either got an empty tank, the pump is faulty or you have a plumbing leak.
Might not be your problem, but definitely something good to be aware of!
Kyle, my buddy has an 01 396. He's the guy that got me into all of this. Been 7 years since then.
- KyleR
- Commander

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2002 Carver 396
Twin Cummins 6BTA 370HP - Location: On the move!
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Re: 1990 3807 Head Fresh Water Pump
So you can blame it all on him!!Kyle, my buddy has an 01 396. He's the guy that got me into all of this. Been 7 years since then
MV Verity
2002 Carver 396
Twin Cummins 6BTA 370HP
2002 Carver 396
Twin Cummins 6BTA 370HP