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Old 06-07-2015, 11:39 PM   #1
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Fresh water blues

Another question regarding my 93 280 Eagle. Filled fresh water tank and I'm having difficulty purging the lines. There is a valve near the top of the tank with a valve and a clear hose about 16" long coming from it. Does this valve need to be opened or closed when running the pump, because it seems like when it's closed, I get no water out of the faucets.
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Old 06-07-2015, 11:52 PM   #2
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That valve needs to be closed. It is for pumping in antifreeze for winterizing. There should be another valve between the pump and tank that needs to be opened.
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Old 06-08-2015, 07:05 AM   #3
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Yet when it is open, water does come out but very slow. I will look again for more valves, but I didn't see any.
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Old 06-08-2015, 07:56 PM   #4
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May or may not help, but I've used that antifreeze hose to blow air back into my water tank to try to clear air bubbles. You can also hook up to city water to clear most of the lines. There's probably a correct order for doing these steps, but I'm an RV newbie, so I don't know what the correct steps are.
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Old 06-08-2015, 08:36 PM   #5
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Should look like one of these

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Old 06-09-2015, 09:10 AM   #6
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Thanks everyone. I think I may have a blockage somewhere, because when I close the antifreeze line, I get absolutely no flow out of the pump. When I open the antifreeze valve I get a trickle. Took lines off of pump, inlet sucks great, outlet pressure is there. However, it would seem that when I took the inlet side of the pump hose off, water would be coming out, and its not. I blew air into the line and heard bubbles in the tank. Scratching my head crazy now.
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Old 06-09-2015, 09:22 AM   #7
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Check the pump inlet screen. My sister had that happen - they left water in the lines for too long and algea grew in the screen. They only got a trickle of water - the dealer found the problem. If you get little water from the fresh water tank using the pump, but have plenty of pressure on city water, you either have a valve closed or something blocking the pump inlet. I'd check those valves and the inlet screen first.
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Old 06-09-2015, 09:26 AM   #8
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Quote:
Originally Posted by justinhscott View Post
May or may not help, but I've used that antifreeze hose to blow air back into my water tank to try to clear air bubbles. You can also hook up to city water to clear most of the lines. There's probably a correct order for doing these steps, but I'm an RV newbie, so I don't know what the correct steps are.
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Old 06-09-2015, 09:26 AM   #9
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One more thing check. I believe the pick up hose just passes through a port on the tank, try wiggling the hose, it might just be bottoming out on the tank and there is not enough room for the water cannot pass by.
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Old 06-09-2015, 09:35 AM   #10
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drawing of tank

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