shurflo pumps

The Shurflo's are actually quite robust. I have been selling them since the early 80's (1000's of them). and in all that time I've only seen 2 ruptured diaphragms. Both cases resulted from running the pump dry for several hours. A far more common problem is a small piece of debris stuck in one of the valves. The most common debris are small pieces of polyethylene from drilling the the inlet/outlet ports in the tank, followed by a bit of teflon tape. A piece of debris will prevent the valve from sealing and the water will be pumped back and forth from cavity to cavity. On occasion a switch will fail, but usually from rapid cycling burning up the contacts.

While the majority of the pumps we sell are still Shurflo, in the last couple of years we have begun selling selling Remco pumps, but only around 25 to 30%. The only reason for the change is the fact that Shurflo is no longer made in the US, while Remco still is.

oldtrojan66 wrote:
Are these units really that fragile? I got up in the night and my foot slipped off the pedal of the stool. Obviously, the water shut off very hard and suddenly and now the pump won't pressurize and shut off. I suspect an internal diaphragm, although I cannot see any tear or hole. Is there a better brand that is not so touchy?

Once the pump starts, it will also run for a short time after the valve is closed as it need to pressurize the water in the lines.

I agree you have some bit of foreign matter in the pump. Take it apart and rinse the rubber parts off. I'm betting it will work fine after that.
You can't hurt these pumps easily. Mine ran dry for more than 48 hours and to this day it still works perfectly.

reasley wrote:
The Shurflo's are actually quite robust. I have been selling them since the early 80's (1000's of them). and in all that time I've only seen 2 ruptured diaphragms. Both cases resulted from running the pump dry for several hours. A far more common problem is a small piece of debris stuck in one of the valves. The most common debris are small pieces of polyethylene from drilling the the inlet/outlet ports in the tank, followed by a bit of teflon tape. A piece of debris will prevent the valve from sealing and the water will be pumped back and forth from cavity to cavity. On occasion a switch will fail, but usually from rapid cycling burning up the contacts.

While the majority of the pumps we sell are still Shurflo, in the last couple of years we have begun selling selling Remco pumps, but only around 25 to 30%. The only reason for the change is the fact that Shurflo is no longer made in the US, while Remco still is.

I guess you know nothing of the horrible reputation of the 5.7 pump?

Cummins12V98 wrote:

reasley wrote:
The Shurflo's are actually quite robust. I have been selling them since the early 80's (1000's of them). and in all that time I've only seen 2 ruptured diaphragms. Both cases resulted from running the pump dry for several hours. A far more common problem is a small piece of debris stuck in one of the valves. The most common debris are small pieces of polyethylene from drilling the the inlet/outlet ports in the tank, followed by a bit of teflon tape. A piece of debris will prevent the valve from sealing and the water will be pumped back and forth from cavity to cavity. On occasion a switch will fail, but usually from rapid cycling burning up the contacts.

While the majority of the pumps we sell are still Shurflo, in the last couple of years we have begun selling selling Remco pumps, but only around 25 to 30%. The only reason for the change is the fact that Shurflo is no longer made in the US, while Remco still is.

I guess you know nothing of the horrible reputation of the 5.7 pump?

Aware of it. That's why we won't sell that model. There is also a model of Shurflo that we won't sell (or any Flojet).

Strange about the problems folks have had with the 5.7. Mine has been perfect even after the abuse it suffered by me, for nearly ten years.

Used up 3 5.7s in 4 years. (all were warranty replaced but I did have to pay shipping).. Using an old 2088 now and all is great.

I burnt up my original 5.7 by leaving it on when I drained my FW tank.

I spent $200 on a new one and the first time out I was set up in camp and the neighbor said you have water coming out of your trailer. The water was coming out of the FW tank vent hole. The built in check in the pump was not working.

I called ShurFlow they sent a new part to fix it. So I tried it and still was not right. So they sent a new 4048 RVBy-Pass Pump. So far it seems to work well.

I have a Shurflow 4008 that my wife tested for abt 8 hours on an empty water tank. Ordered another one figuring it was toast, it wouldn't run. Nope worked just fine after cooling off. Of course this was after getting in the new one so I didn't have stuff scattered everywhere. Now I have a spare....

avvidclif1 wrote:
I have a Shurflow 4008 that my wife tested for abt 8 hours on an empty water tank. Ordered another one figuring it was toast, it wouldn't run. Nope worked just fine after cooling off. Of course this was after getting in the new one so I didn't have stuff scattered everywhere. Now I have a spare....

Most Shurflo pumps have a thermal protection switch to protect the motor. Once they hit around 150 degrees they will shut down.