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Old 10-01-2018, 10:58 AM   #1
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Join Date: Oct 2018
Location: Hood River
Posts: 2
air in fresh water pump strainer???

I replaced the fresh water pump on our Jayco (2010 Jayflight 19bh) and the new pump often acts as though the fresh water tank is nearly empty. I put shutoff valves on the overflow tubes because they were siphoning much of the fresh water out immediately after fill - although there was still enough left that the pump should have been fine for a while. So, specific symptoms:

The strainer before the pump usually has 50-80% air space even when the pump is running.

Pump sometimes runs for a long time - shutting it off and then back on along with opening a fixture (then closing) usually gets it to flow better and shut off when the pressure builds.

Sometimes "spits" water and air.

I pulled the pump and it works fine when I put a short intake tube in a bucket of water and then open and close a valve on the output side. I'm worried that something is wrong with the factory mounted intake. Bummer is I can't get to it at all without dropping the underbelly mounted the tank which seems like a major project. Any thoughts???
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Old 10-01-2018, 11:03 AM   #2
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Join Date: Aug 2015
Location: Ottawa, ON
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I'd replace the strainer first. They often develop cracks in the clear plastic cap, or the gasket seal where the cap screws on starts leaking. Cheap part, and easy to change.
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Old 10-01-2018, 02:06 PM   #3
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Thanks. I can actually just disconnect the strainer and run the pump without it. I've done that in the past, but I can't remember if it fixed the problem. Thanks for the reminder!
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