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Old 06-17-2015, 02:55 PM   #1
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2005 25' Safari
Springville , Alabama
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Ok to replace a Shurflo 4 gpm pump with a 3 gpm?

We just came in from a trip and found that the fresh water pump switch was on and the pump was running. I am not sure how long it had been on. The pump motor sounds fine, but it just spits and sputters and appears to not to be catching a prime. I do not know how much water was in the tank, as this is the first time we have used the trailer this year and we hooked up to city water at the campsite. The fresh water tank has been since filled, but it will not pump.

The pump is the 4900-0211 Smart Sensor 4.c (original installed in my 25' 2005 Safari). I contacted Shurflo and they said " It could be that all it needs are the valves to be wetted or replaced. With the Smart Sensor and electronics however, it could be that replacement is the best avenue to take. Model 4048-153-E75 is the new model that replaced the 4900-0211 and is available from most local RV Dealers.".

Questions:
1. How do you "wet" a valve, and is this valve inside of the pump?
2. The replacement pump recommended costs $160. But they make a SHURflo 4008-101-E65 3.0 Revolution Water Pump as well that is rated at 3 gpm that costs $65. Would this 3 gpm pump work ok?

Thanks, advice would be appreciated.
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Old 06-17-2015, 03:03 PM   #2
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Before you change out the pump.
Disconnect the input line to the pump. If there is enough hose at that point put it in a pan of water and try the pump. If not connect a small hose to the pump and try the pan trick.

If the pump picks up a prime you should be able to reconnect thing and it will pump as long as there is water in the tank. The more water the easier to pick up a prime as the lift will be less.
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Old 06-17-2015, 03:37 PM   #3
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Yeah,, just a lost prime I think... Open all the faucets inside for a bit..

Oh, do you run the pump when on Ciry supply?
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Old 06-17-2015, 04:33 PM   #4
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Ok to replace a Shurflo 4 gpm pump with a 3 gpm?

Make sure you have water in the FW tank. Disconnect the discharge hose from the pump. Turn the pump on. If you get water, you are good to go. Connect the discharge line. Open a faucet and test.
Look for water in the body of the inline strainer just ahead of the pump intake.
You may also be sucking air on the intake side.
It is a diaphragm type pump. The fact that it was running will not typically damage the pump.
A 3 GPM replacement will work just fine.


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Old 06-17-2015, 07:11 PM   #5
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Oh... You did clean the strainer, riiiiight!
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Old 06-17-2015, 09:49 PM   #6
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All great suggestions guys, thank you so much, and I now have hope that the pump may not have to be replaced. I will try them all this weekend and report back if your willingness to share advice saved me $160!
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Old 06-18-2015, 12:35 PM   #7
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My guess is that you will need a rebuild kit for the rubber parts, which when run dry, wear very quickly. Unfortunately these are often nearly as much as a new pump, at least for my Shurflow marine pump on our sailboat.
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Old 06-18-2015, 12:36 PM   #8
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Check the winterizing valve at the pump. Perhaps it is in the winterizing position.

If not, also a good place to do process of elimination. If the pumps picks up water from a container by using the winterizing hose pigtail, its something other than the pump.


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Old 06-18-2015, 12:37 PM   #9
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You can buy a new pump that will work for a lot less than $160.


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Old 06-18-2015, 01:14 PM   #10
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I bought a rebuild kit and installed it in my old pump. Haven't tried it out yet to see how well it works. Bought a new pump last year at CW for about $100 or so. The kit cost in the neighborhood of $30.
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Old 06-18-2015, 04:48 PM   #11
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Quote:
Originally Posted by driftwood1 View Post
We just came in from a trip and found that the fresh water pump switch was on and the pump was running. I am not sure how long it had been on. The pump motor sounds fine, but it just spits and sputters and appears to not to be catching a prime. I do not know how much water was in the tank, as this is the first time we have used the trailer this year and we hooked up to city water at the campsite. The fresh water tank has been since filled, but it will not pump.

The pump is the 4900-0211 Smart Sensor 4.c (original installed in my 25' 2005 Safari). I contacted Shurflo and they said " It could be that all it needs are the valves to be wetted or replaced. With the Smart Sensor and electronics however, it could be that replacement is the best avenue to take. Model 4048-153-E75 is the new model that replaced the 4900-0211 and is available from most local RV Dealers.".

Questions:
1. How do you "wet" a valve, and is this valve inside of the pump?
2. The replacement pump recommended costs $160. But they make a SHURflo 4008-101-E65 3.0 Revolution Water Pump as well that is rated at 3 gpm that costs $65. Would this 3 gpm pump work ok?

Thanks, advice would be appreciated.
I just replaced our water pump (Shurflow 4900-0201, now obsolete) with their replacement model (4048-153-E75). I paid just over $200.00 before taxes for the 4GPM unit. The price was reduced for Good Sam members.

The trailer is one season old and used a total of three weeks on three trips. 2014 23' International Serenity. The pump leaked air and water. I opened it and inspected the seals. No way to replace them as has been reported unless from Shurflow. The one seal seemed to be "formed" to fit the 8 screw settings holding the front end onto the motor. I called our dealer and they said "they" typically replace rather than repair. I suspect shop time for repair is an issue?? I am annoyed the pump was in failure but am pleased I was able to replace it at home. The dealer is 3 hours away.

I am suspicious that there might be a deficiency of sorts with the old pump. Ours was built in 2013 and obviously installed in the 2014 unit that we purchased new a year ago.

The old pump is obsolete, as stated above. If you can repair the old one, do it. I have less ambition I guess and was happy with the updated model. Best of luck .
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Old 06-18-2015, 07:18 PM   #12
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We use ShurFlows to pump fertilizer too our planters. 6000 gallon Semi loads at a time. They are known to run 100s of hours pushing fertilizer that's 4 times thicker than water. Yes we get a dud once in awhile but with proper flush out and anti freeze when done 90% of the time they take off and work another season..

The main seal kit has everything built into 1 unit.. The valves are another gizzmo but not to hard to replace.. Just make sure all the screw holes line up and slowly seat the cover back into place with a 1/2 a turn on opposite screws..

The one in our 72 Overlander died,, and replaced it with a 1.8 gallon per minute and we get along just fine.. Only the shower is a little weak,, but heck we are trying to ration water anyway when we boom dock.

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Old 06-18-2015, 08:12 PM   #13
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Ok to replace a Shurflo 4 gpm pump with a 3 gpm?

We replaced our noisy anemic factory pump with a Shurflo Revolution and are very happy with the increased pressure for showers and it is very quite.has been two years now and it was a great upgrade.15 min to change out and it is self priming.Cost $110


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Old 06-21-2015, 06:38 PM   #14
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2005 25' Safari
Springville , Alabama
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Still have a problem...

Ok, I disconnected the pump, connected a hose to pump inlet and bucket of water. Pump primed and pumped fine. Hooked back up to trailer connections,, and problem is the same.... Sputters water. I let it run for 3 minutes and still no luck. Still acts like not catching a prime or something. I don't think it is the pump based on above test. This was the first trip this year after winterizing, could it be some valve off somewhere? Or some obstruction? Leaving for 5000 mike trek to Nova Scotia in 2 weeks and have to get it fixed.....
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