Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 04-16-2012, 06:36 PM   #1
Registered User
Join Date: Dec 2011
Posts: 203
Shurflo Extreme Series water pump...

I'm getting low pressure and flow from this pump. Yes it primed. Also, It won't shut off either. I'm thinking it's the pump or the sensor, neither of which there seems to be parts for.

Anyone else had a problem similar? And what was your fix?

GWinger is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-16-2012, 11:20 PM   #2
"Formerly Diplomat Don"
Dutch Star Don's Avatar
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 7,225
GWinger.......You need to provide some additional information, like what type of RV this is in. Did it just start out of the blue? How old is it?

You can have a couple of issues, the most often being an internal seal in the pump going bad. You can also have a stuck one way valve where you connect your exterior water hose. When a water hose is not connected, there is a one way valve, near the hose connection, that closes and allows your system to pressurize and shut down the pump. They can get dirt in them and stick open. They can sometimes be tested by screwing in a solid cap where your water hose connects. This will cause the system to pressurize.

Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab
Dutch Star Don is offline   Reply With Quote
Old 04-17-2012, 05:00 AM   #3
Senior Member
H. Miller's Avatar
Monaco Owners Club
Texas Boomers Club
Join Date: Jan 2009
Posts: 2,516
May we assume that you carefully cleaned any PRE filters/screens??? As Don mentioned, connect "city water" - turn on city water and the RV pump. City water should pressureize the system turning off the pump and checking the pump pressure sensor.
Found several kits for rebuilding Shurflo pumps but since we have no idea exactly which pump you have, can't help there.....
Hal & Ginny Miller '04 Beaver Santiam PRT40
'04 Saturn Vue - US Gear Brake - Blue Ox tow
4 "girls" (3 Irish Setters - Retriever)
H. Miller is offline   Reply With Quote
Old 04-17-2012, 11:02 AM   #4
Registered User
Join Date: Feb 2012
Posts: 346
Since the title says Shurflow extreme I'll assume it's the 5.7 gpm. There is a screw on the pump end in the center that will adjust the pressure for turn off. Also do you have the high flow pre filter bowl? Let us know if that does it.
henderson is offline   Reply With Quote
Old 04-17-2012, 11:58 AM   #5
Registered User

Monaco Owners Club
Join Date: May 2009
Posts: 3,198
I have an extreme, great pump, lots of pressure and volume. First ever i simply cannot tell if hooked up to shore water or not, just no difference in the flow.

For the op, what you're descriping sure sounds like the tank fill valve is on, without being connected to shore water. This lets pump water "run in circles"
JimM68 is offline   Reply With Quote
Old 04-18-2012, 06:57 AM   #6
Registered User
Join Date: Dec 2011
Posts: 203
Not that it matters, but this pump (Shurflo Extreme Series 5.7) was orginal equipment in my '04 5th wheel.

The problem, after much troubleshooting and finding NONE with the water system of the trailer, turns out to be 'probably' the sensor on the pump head. This being an older model, with a born date in '03, has no adjustment as described by henderson. The filter/screen is clean also, H. Miller. Thanks for your suggestion.

I did call Shurflo and because it is older than '06 there are NO REPAIRS AVAILABLE. Even though the newer models carry the SAME model number, the parts are different. The adjustment on the pump head, I believe in on the later models. You can't use the newer heads on the older pumps because the sensor is separate from the controller, which is mounted under the motor.

On another thread, someone had suggested 'pleading my case' to Shurflo in an email. Apparently he did in an email to Shurflu entitled "unhappy Shurflo customer". He said, I think that they sent him a new pump at no cost. Some how I don't believe it. But hey, it might be worth a shot.

I think I'll instead just buy a pump without all the super-duper bells and whistles. You know, the so called "high-end" product. A basic pump with about a 1.3 gpm flow at 30psi can be had for about $70.

Thanks for all the contributions and attempts to solve this problem.
GWinger is offline   Reply With Quote
Old 04-25-2012, 08:06 PM   #7
Junior Member
Join Date: Apr 2012
Posts: 5
Just replaced mine

Tell me if I went about this the right way. I had the 5.7 that was short cycling all the time. I tried adjusting the screw on it and it slowed the pump,but still cycled. I disconnected the inflow and put it in a bucket of water, disconnected the outflow and capped it. It still cycled, so I relaced it w/ new pump. Wala it was fixed.
rtcadman is offline   Reply With Quote
Old 04-26-2012, 03:56 AM   #8
Registered User
Join Date: Dec 2011
Posts: 203
If your pump had the adjustment screw on the head, it was of the later design and was repairable with parts from Shurflo. I think the change in design came in about '06. Prior to that, Shurflo disowns them. The weird part and one that makes it difficult is that the old AND the newer design both carry the SAME part number while the parts are NOT interchangeable.

So, to answer your question if you went the right way or not...? Hard to tell. One way or another, I think you did need another pump. As to new parts or a whole new and different style? Your call. I think the 'short cycling' was because of a bad sensor.
Just MY opinion, of course.
GWinger is offline   Reply With Quote
Old 04-26-2012, 07:01 PM   #9
Senior Member
AFChap's Avatar
Winnebago Owners Club
Spartan Chassis
Join Date: Aug 2002
Location: ...hopefully on the road!
Posts: 4,433
I installed my first Shurflo 5.7 Extreme pump in 2005. Great flow when they work, but I have replaced it 6 or 7 times (yep, avg of once a year) every time under warranty. I recently had another failure and have reinstalled the original 1.8gpm pump. The failed pump is again under warranty, but I think I am through with them. Some refused to come on, some refused to shut off, and one leaked. I know how to adjust them, but sometimes that doesn't work. I am debating whether to go with the more reliable 4.something model, or try an Aquajet model.
Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e / '05 Honda Odyssey toad
AFChap is offline   Reply With Quote
Old 04-26-2012, 07:56 PM   #10
Senior Member
cmpncrsaider's Avatar

Winnebago Owners Club
Freightliner Owners Club
Join Date: Sep 2011
Location: New Jersey
Posts: 298
I had a similar problem, turned out to be small hole in the diaphram of the pump. Got the replacement part from PumpAgents.com for $69.22. Easy fix, but bought a replacement pump to keep onboard in case a failure occurs while on the road. Replacement pump was $256.78 and is still in the box on standby.
John and Vicki,2004 Winne Vectra 350 Cummins, 10k lb Blu Ox tow bar , 04 Dodge Ram 1500 4wd toad
cmpncrsaider is offline   Reply With Quote
Old 04-30-2012, 05:08 AM   #11
Senior Member
Max Hubrich's Avatar

Workhorse Chassis Owner
Join Date: Mar 2007
Location: Pikeville, NC
Posts: 1,705
Like AFChap I'm on my 4th 5.7 pump in 5 years.

This one is working fine for about a year now. All were replaced for no charge directly from Shurflo. They told me to keep the last one and throw it away. I still have it at the home place. Maybe someday I will tear it apart and find out what went wrong with it.

Most of mine were leaking.
Max H,
2002 Newmar Mountain Aire, 37', 3778, W-22, 8.1 Vortac, Ultra Power upgrade, CAI (cold air intake), Taylor wires, colder plugs, Koni shocks.
Max Hubrich is offline   Reply With Quote
Old 05-01-2012, 09:01 AM   #12
Registered User
Join Date: Dec 2011
Posts: 203
Originally Posted by Max Hubrich View Post
Like AFChap I'm on my 4th 5.7 pump in 5 years.

This one is working fine for about a year now. All were replaced for no charge directly from Shurflo. They told me to keep the last one and throw it away. I still have it at the home place. Maybe someday I will tear it apart and find out what went wrong with it.

Most of mine were leaking.
I'll bet you won't be able to SEE the failure. It seems to be mostly with the sensor system.

I guess I've been pretty fortunate for mine to last so long given the frequent failure of most. Mine was 9-10 years old. Shurflo wouldn't offer me any compensation for mine because of it's age.

GWinger is offline   Reply With Quote


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:35 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.