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Old 06-17-2021, 08:54 PM   #1
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Dx3 water pump prime

I pumped the water tank to empty to get rid of some bad water. Since then I have not been able to get the pump to reprime. I have pressurized the water system with the hose and then turned off the water and the pump just won't prime. Any ideas here?

Thanks
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Old 06-18-2021, 06:14 AM   #2
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Once you pressurized the system with the hose and made sure there was water in the tank did you realize the pressure in the system by opening a faucet to get the pump to start?
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Old 06-20-2021, 09:26 AM   #3
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Seems the pump primes better with no back pressure - have the faucet closest to the pump fully open when you try to prime.
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Old 06-20-2021, 10:07 AM   #4
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It is entirely possible that the water pressure from the hose has forced the water pump into "by-pass" mode. The pump will not come out of by-pass mode until the residual pressure from the CW line is relieved.
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Old 06-27-2021, 04:02 PM   #5
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I wanted to share the outcome. There is a screen filter right before the water pump. It was so gunky very little water was getting through. I cleaned it and all is good...except the gunky freshwater tank!!!
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Old 06-27-2021, 04:33 PM   #6
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What about your fresh water tank drain?

Maybe try running water into the tank with the drain line open to flush out the bad stuff, then sanitize.
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