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Old 02-28-2005, 05:13 PM   #1
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I have a 2002 Cougar FW. The water pump primes and shuts off but when water is turned on pressure is good for 30 seconds and flow is good for the same amount of time. Them pressure and flow drop off to only a trickle. I have the standard 8022 Shurflo pump. I have checked the fresh water backflow preventer and replaced the pump head. Need help.
Todd
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Old 02-28-2005, 05:13 PM   #2
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I have a 2002 Cougar FW. The water pump primes and shuts off but when water is turned on pressure is good for 30 seconds and flow is good for the same amount of time. Them pressure and flow drop off to only a trickle. I have the standard 8022 Shurflo pump. I have checked the fresh water backflow preventer and replaced the pump head. Need help.
Todd
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Old 02-28-2005, 08:13 PM   #3
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When you listen to the pump, does it start immediately and run full speed? The sound should be some indication of what the pump is doing. Could there be some kind of a flow restriction in the faucet, or do all of them react the same way?
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Old 03-01-2005, 07:33 AM   #4
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If the pump is running but flow and pressure drops to almost nothing, the problem is that water is not getting TO the pump in sufficient quantity to keep up with pump output. The most likely cause is a leak in the intake line which allows the pump to suck air instead of water. A tiny pinhole can cause an amazing loss of suction! Another possibility is that the tank end of the pump intake hose is partially clogged. Once the pump delivers the water that is in its intake hose, it can no longer get enough additional water to keep up with demand, but when the demand stops the hose slowly refills with water and it is ready for the next time.
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Old 03-01-2005, 07:47 PM   #5
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Thanks for the pump info. I disconnected the pump from the tank line and placed the end of the hose in a bucket of water and the pump worked great. Loads of pressure and flow. This weekend I will figure out where the hole or clog is between the pump and the tank. Thanks again for the info.
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Old 03-01-2005, 09:06 PM   #6
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......I had the same problem with a stock car [racing] when I was quite a bit younger[20's].... I sucked on the hose and nothing would come out of the tank so I took off the tank hose and sucked on the gasoline tank hose barb.....sucked a dead mouse out of the tank into my mouth......[lost dinner].....have been reminded of it everytime we get together for the last 43 years....only chance that they won't put it on my tomb stone is if I outlive them all....geof kaye
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Old 03-02-2005, 02:38 AM   #7
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Todd, you might take a look at your tank filler hose; -should be a small breather hose in that area, and the breather may be clogged. If the main tank filler cap seals tightly, then the pump will draw water until it starts creating a vaccuum (because the breather is clogged)...
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Old 03-04-2005, 01:30 PM   #8
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I found the problem. The line from the tank goes up through the floor and then makes an 180 degree turn right back down into the floor and connects to the pex line. Sure enough the line was flat at the bend. Removed the bend a all works good now. Thanks again Todd
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