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03-27-2022, 07:55 PM
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#1
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Senior Member
Join Date: Oct 2021
Posts: 410
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Water pump
I’m gonna change my water pump due to the housing is weeping a bit. Curious what pump others are using……
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Jimmy……
2001 Alpine 36 mdds
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03-27-2022, 09:27 PM
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#2
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Senior Member
Alpine Owners Club
Join Date: Feb 2018
Location: Cut n Shoot, TX
Posts: 207
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I don’t have any input on which pump to use, I would like to know what your impeller looks like and if it appears to have been changed before. I have about 110 k on mine and it shows no evidence of being changes.
Thanks
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Dawn & Steve Byrd
2003 Alpine
Cut n Shoot, TX
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03-27-2022, 09:43 PM
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#3
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Senior Member
Join Date: May 2013
Location: S. California
Posts: 1,379
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Many different brands you can use but most folks use a ShurFlo pump. I believe 3-4 gpm is average.
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2003 Monaco Knight 36ft PST Triple Slide- 315 ISC
2007 Jeep Grand Cherokee 3.0 Diesel 4x4
2- 2013 Yamaha VXR's 70MPH+. 2019 Sun Tracker 18ft Pontoon w/ 75hp Mercury
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03-28-2022, 03:17 AM
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#4
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Senior Member
Alpine Owners Club
Join Date: Oct 2017
Location: Sugar Grove IL
Posts: 409
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Are you asking about the Cummins water pump or the house 12v water pump?
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Mack Mover
2003 Alpine 40 MDTS
400 ISL
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03-28-2022, 06:32 AM
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#5
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Senior Member
Join Date: Oct 2021
Posts: 410
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Sorry, should have clarified that I’m talking about the house pump. Has a shurflo on it now. It’s weeping at the seam in the black housing. Haven’t taken it out to see if it’s fixable yet. Thought I’d replace it, then attempt repair on this one and keep as a spare.
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Jimmy……
2001 Alpine 36 mdds
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03-28-2022, 07:10 AM
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#6
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Senior Member
Alpine Owners Club
Join Date: Nov 2015
Location: Lake Havasu City, AZ
Posts: 3,013
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Sureflow is the best bang for the buck. I always keep a spare onboard as no pump makes things pretty complicated 
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Paul & Jean
2001 Alpine 36FDDS (74291)-3900W Solar, 13,440Wh (525Ah @24V) LiFePO4
2019 Jeep Grand Cherokee Trailhawk (Hemi)
2006 Alpenlite 32RL - Sold
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03-28-2022, 07:22 AM
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#7
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Senior Member
Alpine Owners Club
Join Date: Feb 2018
Location: Cut n Shoot, TX
Posts: 207
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My mind went straight to the coolant pump on the engine.
Ironically I did just change the house pump and went with the Sure Flow.
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Dawn & Steve Byrd
2003 Alpine
Cut n Shoot, TX
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03-28-2022, 09:11 AM
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#8
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Senior Member
Join Date: Nov 2017
Location: Marysville, WA
Posts: 556
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I also just replaced mine with another Shurflo.
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Angelo & Leslie
2005 Alpine 36FDDS #75268
MARYSVILLE, WA.
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03-28-2022, 10:59 AM
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#9
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Senior Member
Join Date: Oct 2021
Posts: 410
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Jimmy……
2001 Alpine 36 mdds
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03-28-2022, 12:48 PM
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#10
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Registered User
Join Date: Jan 2021
Posts: 2,184
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Sureflo 4008-101-E65.
Just replaced ours. The old one would run for a second every so often. Couldn’t find any leaks. New one only runs when a faucet is open. As far as I’m concerned, that confirms no leak. Kept the old one as a spare.
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03-28-2022, 12:58 PM
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#11
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Senior Member
Join Date: Oct 2019
Location: Buena Vista, Baja California Sur
Posts: 797
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Shurflo is one of the most popular with Jabsco probably not far behind.
Ease of installation is always on my mind. If a new pump with the same footprint and plumbing connections can be found it can save a lot of grief. Difficulty is manufacturers modify design on their products and finding a plug and play replacement for an older pump without modifying RV plumbing connections is not always possible. 
Oh, most house pumps do not have an impeller and are diaphragm driven. The advantage is they can be run dry without damage.
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Mark & Jen Rayor, Baja Ca Sur, Mexico
04 Prevost H3 45 Liberty Elegant Lady 24V
toad, Jeep Willys Wrangler
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03-28-2022, 02:27 PM
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#12
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Registered User
Join Date: Jan 2021
Posts: 2,184
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In our case, the pump was a direct replacement. I simply had to crimp on the appropriate terminals to match what was on the existing wires. The old, now spare, pump is dated 2012.
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03-28-2022, 02:28 PM
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#13
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Senior Member
Join Date: Oct 2021
Posts: 410
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I’ve got one on the way. Along with new Koni shocks, lol.
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Jimmy……
2001 Alpine 36 mdds
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03-28-2022, 03:15 PM
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#14
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Senior Member
Join Date: Jul 2017
Location: Central Kalifornia
Posts: 588
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Shurflo are really just a throw away pump, have to replace about every 5 years or so, sad to say.
Shurflo, what a misnomer of a name. 
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