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Old 01-19-2015, 09:07 PM   #1
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Replacement pump for Shurflo Smart Sensor 4900-0211

I have a 2009 Classic with a Shurflo Smart Sensor 4900-0211. (I don't believe it's the original pump.) It sprung a leak on this last trip and needs to be replaced. I've repaired it once before. So, what should I replace this model with? I believe it has been discontinued.

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Old 01-19-2015, 09:24 PM   #2
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I believe the replacement pump is the 4048-153-E75. Shurflo Revolution RV 12V Water Pump 4GPM High Flow - $139.90
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Old 01-19-2015, 09:42 PM   #3
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I have used both Shurflo and Flojet pumps and find both to be good. Flojet is generally a bit cheaper. I have the variable speed smart sensor type in my FC 20' and honestly don't find it a bit better than the old constant speed pump in my '74 Argosy. If I was replacing the new variable speed today I probably would use an older type constant speed pump and save the money. That is my opinion only of course.
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Old 01-19-2015, 11:38 PM   #4
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I've had luck replacing the rubber diaphragm in my pump, with a piece of rubber roof material. I suspect tire inner tube would be about the same thickness. Lasted from '07 to last summer, when I changed it out again in an hour. Use a .22 brass and small hammer to make the screw holes, a .30 or .38 brass for the other holes. I'd make an "accumulator" by inserting a vertical piece of pipe somewhere in the system where you could adjust the amount of air in it. Probably about the same as putting in a piece of vertical pipe in the house to stop water hammer. The air helps moderate the water hammer pounding.
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Old 01-20-2015, 06:24 AM   #5
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Quote:
Originally Posted by NevadaGeo View Post
I've had luck replacing the rubber diaphragm in my pump, with a piece of rubber roof material. I suspect tire inner tube would be about the same thickness. Lasted from '07 to last summer, when I changed it out again in an hour. Use a .22 brass and small hammer to make the screw holes, a .30 or .38 brass for the other holes. I'd make an "accumulator" by inserting a vertical piece of pipe somewhere in the system where you could adjust the amount of air in it. Probably about the same as putting in a piece of vertical pipe in the house to stop water hammer. The air helps moderate the water hammer pounding.
Flexible steel braided water lines from the pump to the initial PEX connections also work very well.
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Old 01-20-2015, 01:18 PM   #6
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My smart sensor was replaced under warranty with a shurflo with a4048-153- E76.It seems to be a better pump. The smart sensor pump was obsoleted by shurflo , so they must had problems with them..
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Old 01-20-2015, 04:03 PM   #7
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Installed the Shurflo Revolution 2 years ago its much quieter more pressure and no more knocking when running.Cheap upgrade and a great pump.
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Old 01-20-2015, 07:48 PM   #8
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Thanks for all of the info. I'm most likely going to try the 4048

Thanks!
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