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05-26-2019, 05:41 PM
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#1
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Member
Join Date: Oct 2013
Location: Edmonton, Alberta, Canada
Posts: 31
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Flojet water pump air spitting
Hello all. I have the factory Flojet pump in my Sprinter. I dewinterized and did my regular routine. After filling HWT and bleeding air out the pump won't shut off when all the faucets are closed. I turn pump off manually and system holds pressure, no leaks. When I turn the pump back on and open a faucet I get above normal water pressue, followed by below normal pressure, air spitting then normal pressure. Turn off the taps and pump won't shut off. I dealt with this for our entire weekend trip. Would you think that a leak on the inlet side allowing air in is causing the pump to not get up to proper PSI or do you think the pressure sensor is gone? First time trying to trouble shoot a water issue. Thanks in advance.
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05-26-2019, 06:11 PM
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#2
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,347
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Go around and operate EVERY hot and cold outlet until water is steady. You may have an air pocket somewhere. If your positive you’ve bled ALL the air out of both the hot and cold lines, if the ump still runs you one of two issues. Either a failed diaphragm in the pump or a leak somewhere.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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05-26-2019, 06:26 PM
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#3
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Member
Join Date: Oct 2013
Location: Edmonton, Alberta, Canada
Posts: 31
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Quote:
Originally Posted by chuckster57
Go around and operate EVERY hot and cold outlet until water is steady. You may have an air pocket somewhere. If your positive you’ve bled ALL the air out of both the hot and cold lines, if the ump still runs you one of two issues. Either a failed diaphragm in the pump or a leak somewhere.
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I camped all weekend this way. No leaks anywhere. I tried to bleed system several times with no luck.
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05-26-2019, 08:40 PM
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#4
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Senior Member
Join Date: May 2011
Location: San Diego CA
Posts: 194
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Hey Chris, check outside shower valves,on my springdale they leaked air into system. Also if your flojet pump uses retainer clips rather then screw on fittings they are prone to air leaks. ----Lou----
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05-26-2019, 09:25 PM
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#5
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Member
Join Date: Oct 2013
Location: Edmonton, Alberta, Canada
Posts: 31
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Quote:
Originally Posted by trucker LOU
Hey Chris, check outside shower valves,on my springdale they leaked air into system. Also if your flojet pump uses retainer clips rather then screw on fittings they are prone to air leaks. ----Lou----
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Checked outside shower when I dewinterized. I felt like the quick connect with o rings would be a possible issue. Almost want to switch to a shurflo pump with screw on connectors.
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05-27-2019, 07:51 AM
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#6
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,347
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We only install shur flo when doing any replacements. Failure rate is extremely low.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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