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Old 07-08-2011, 07:02 AM   #1
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Pump not Priming

I have a new 2011 JayFeather 29L. I have had a couple issues with the water pump on early trips and after dis-assembly for troubleshooting, I found a considerable amount of plastic shavings and plastic pieces in the pump and lines coming from the fresh water tank. I've cleaned it thoroughly and haven't found any more in subsequent tear-downs (5 times last night---read on).

Last night we set up and I filled the FW tank to overflowing. When I switched on the pump, it ran without stopping but never primed from the fresh water tank. I closed the FW tank valve, opened the winterizing tube valve and tried to prime from a gallon jug...nothing. It would not pull. I dis-assembled several times to try to identify the problem. Everything looks normal and I didn't see any more debris on subsequent tear-downs. Pump had just a little water/moisture in it each time.

I eventually got it to work but it was an involved process. I held the line above the pump, poured water in filling the tube completely. I then had to seal my lips around the winterizing tube and blow into the tube to force the water into the pump (even with the tube full and above the pump it would not prime with gravity). After forcing the water into the pump by blowing, the pump primed and now works fine pulling from the FW tank without any trouble. Overnight, the pump held pressure and works fine this morning. I know the pump is suppose to self prime but I'm at a loss for what's not working right....any ideas on what might be the cause? Could I still have a blockage before the pump that is preventing water from getting to the pump but "blowing" water into pump helps the situation?
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Old 07-08-2011, 07:48 AM   #2
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Assuming that there aren't any air leaks around any of the pump water line connections, adding in the time and effort you have put into it thus far, IMO it's time to take it back to the dealer for a warranty service claim.

Bob
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Old 07-08-2011, 09:49 AM   #3
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Sounds like you might have had a air block and pump would not prime and when you blew on it you forced water past. sounds strange but I have had same problem on other trailers and with other water pumps at fire station.
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Old 05-29-2016, 06:24 PM   #4
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Quote:
Originally Posted by 4J's_&_M_with_Jayco View Post
I have a new 2011 JayFeather 29L. I have had a couple issues with the water pump on early trips and after dis-assembly for troubleshooting, I found a considerable amount of plastic shavings and plastic pieces in the pump and lines coming from the fresh water tank. I've cleaned it thoroughly and haven't found any more in subsequent tear-downs (5 times last night---read on).

Last night we set up and I filled the FW tank to overflowing. When I switched on the pump, it ran without stopping but never primed from the fresh water tank. I closed the FW tank valve, opened the winterizing tube valve and tried to prime from a gallon jug...nothing. It would not pull. I dis-assembled several times to try to identify the problem. Everything looks normal and I didn't see any more debris on subsequent tear-downs. Pump had just a little water/moisture in it each time.

I eventually got it to work but it was an involved process. I held the line above the pump, poured water in filling the tube completely. I then had to seal my lips around the winterizing tube and blow into the tube to force the water into the pump (even with the tube full and above the pump it would not prime with gravity). After forcing the water into the pump by blowing, the pump primed and now works fine pulling from the FW tank without any trouble. Overnight, the pump held pressure and works fine this morning. I know the pump is suppose to self prime but I'm at a loss for what's not working right....any ideas on what might be the cause? Could I still have a blockage before the pump that is preventing water from getting to the pump but "blowing" water into pump helps the situation?
I just had same problem !! Put antifreeze through it for winter everything ok. Just took TT out and pump didn't work. Noticed a loose clamp but was like that when I stored it and sucked antifreeze . So I tightened it and filled tube with water and had to blow it through pump like you did. Got it working but takes a little longer and louder to build pressure. Wondering how this happened over winter? TT is a 2013 jayco 26 bh.wondering if pump is shot now ?
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Old 05-29-2016, 08:01 PM   #5
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If you had that much trash in the pump I would have to assume that the impeller was damaged. It may not look like it but it's probably not sealing tightly or not staying up against the walls of the pump as it spins.

I bet you wind up replacing the pump. Even if you replace the impeller you may still have damage to the walls of the pump chamber.
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Old 05-29-2016, 08:50 PM   #6
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For the time you spend on trying to get it to work, you may just want to go ahead and invest in a new pump. I think they're around $60 on-line. You can upgrade to a quieter one for a bit more. While you're at it, get a trash filter for the inlet side to keep debris from getting into the pump again.
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Old 05-30-2016, 04:42 AM   #7
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Quote:
Originally Posted by 4J's_&_M_with_Jayco View Post
I have a new 2011 JayFeather 29L. I have had a couple issues with the water pump on early trips and after dis-assembly for troubleshooting, I found a considerable amount of plastic shavings and plastic pieces in the pump and lines coming from the fresh water tank. I've cleaned it thoroughly and haven't found any more in subsequent tear-downs (5 times last night---read on).

Last night we set up and I filled the FW tank to overflowing. When I switched on the pump, it ran without stopping but never primed from the fresh water tank. I closed the FW tank valve, opened the winterizing tube valve and tried to prime from a gallon jug...nothing. It would not pull. I dis-assembled several times to try to identify the problem. Everything looks normal and I didn't see any more debris on subsequent tear-downs. Pump had just a little water/moisture in it each time.

I eventually got it to work but it was an involved process. I held the line above the pump, poured water in filling the tube completely. I then had to seal my lips around the winterizing tube and blow into the tube to force the water into the pump (even with the tube full and above the pump it would not prime with gravity). After forcing the water into the pump by blowing, the pump primed and now works fine pulling from the FW tank without any trouble. Overnight, the pump held pressure and works fine this morning. I know the pump is suppose to self prime but I'm at a loss for what's not working right....any ideas on what might be the cause? Could I still have a blockage before the pump that is preventing water from getting to the pump but "blowing" water into pump helps the situation?
The pump on my 2010 died last year suddenly. One day it worked and the next it didn't. I just replaced it with a new one. Not that expensive and a better pump than the original.
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Old 05-30-2016, 06:17 AM   #8
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Anyone know the lifespan of a rv pump.

Yeah, I know there are many things that determine that but I have never had to replace one on a camper ever and I have owned some old campers that still had the original pump installed.
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Old 05-30-2016, 07:10 AM   #9
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Originally Posted by BuddyRay View Post
If you had that much trash in the pump I would have to assume that the impeller was damaged. It may not look like it but it's probably not sealing tightly or not staying up against the walls of the pump as it spins.

I bet you wind up replacing the pump. Even if you replace the impeller you may still have damage to the walls of the pump chamber.
There's no impeller in these pumps, at least with the Shurflo RV pump models. They are diaphragm pumps.

Here are a couple of links to Shurflow documents that may help.

http://www.shurflo.com/images/files/...oubleShoot.pdf

http://www.shurflo.com/images/files/...s/911-1024.pdf
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Old 05-31-2016, 01:10 PM   #10
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I have experienced the same problem. I do no tuse the pump for fresh water ,only for winterizing. Two yers in a row I could not get the pump to prime, it just keep running with no suction. First year I replaced the valve assembly ( see item 3 in photos http://www.shurflo.com/images/files/...s/911-1024.pdf

Second year, same problem. I disassembled the pump and found the valves were stuck closed. Got them unstuck and used water proof grease to coat them, reassembled and it worked. Waiting for fall and winterizing time to see if it had lasting effect.
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