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07-08-2019, 04:54 PM
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#1
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Senior Member
Tiffin Owners Club Appalachian Campers
Join Date: Nov 2017
Location: TN
Posts: 157
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Upgrading Water Pump to Higher Volume Output
I've been considering upgrading my WP to one with a higher VOLUME output, not higher pressure. Wanted to see if anyone else has done so and what the results are, if it's worth it, noticeable difference, etc. Seems like my water pressure and volume aren't very good just running off the pump and I figured one putting out more volume would help. It'll cost around $200 for the higher volume pump which is rated at 5.5gpm @60psi, almost double the volume of mine which is rated at 3.3gpm. TIA for any input!
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Bill, Christine & Rip (Ripley Dash Dutton) (Chihuahua/terrier mix)
2022 Montana Legacy 5th Wheel - 2019 F350 Ford 4X4
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07-08-2019, 05:50 PM
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#2
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,652
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Physics control what you want, the given plumbing ID and length controls flow volume at a given pressure, the only way to increase flow rate in the same size piping is increase pressure. The easy explanation is, when the pipe is full of water the only way to increase flow rate is increase pressure.
FYI, Most RV plumbing is tested to 60 PSI maximum. A separate issue is (if you have one) an ice maker. The ice maker controls how long the water solenoid opens to allow water flow to the ice maker tray. When pressure is increased more water enters the freezing tray, most ice makers are designed to operate at 35 psi, which controls water flow rate.RV Ice makers have a limited adjustment to control how long the water solenoid is held open, which determines cube size.
Ref: page 3 of http://bryantrv.com/docs2/docs/icemaker.pdf
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2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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07-08-2019, 06:51 PM
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#3
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Senior Member
Join Date: May 2009
Location: Mariposa, CA
Posts: 3,928
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If you're talking about switching to the Remco Aquajet 55AVR, then I highly recommend this pump.
I switched from a Shurflo 2088 and then a Shurflo 4008 rated at 50 psi @ 60 gpm.
The Aquajet is rated at 65 psi @ 5.3 gpm. After several years of operation, so far the plumbing in my 2001 Newmar hasn't blown up.
__________________
2003 - 2010: 2004 35' National RV Sea Breeze LX 8341
2010 - 2021: 2001 41' Newmar Mountain Aire 4095
2021 - ???? : 2001 31' National RV Sea View 8311
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07-08-2019, 07:48 PM
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#4
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Senior Member
Join Date: May 2019
Posts: 2,392
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Quote:
Originally Posted by Ray,IN
Physics control what you want, the given plumbing ID and length controls flow volume at a given pressure, the only way to increase flow rate in the same size piping is increase pressure. The easy explanation is, when the pipe is full of water the only way to increase flow rate is increase pressure...
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True, except for when you want to be able to run multiple fixtures at the same time, like take a shower while someone washes dishes. Then having the extra flow rate is key. All the pressure in the world is not going to fix a low flow rate in a situation like this.
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Richard
1994 Excella 25-ft (Gertie)
1999 Suburban LS 2500 w/7.4L V8
1974 GMC 4108a - Custom Coach Land Cruiser
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07-09-2019, 09:09 AM
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#5
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,652
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Quote:
Originally Posted by richard5933
True, except for when you want to be able to run multiple fixtures at the same time, like take a shower while someone washes dishes. Then having the extra flow rate is key. All the pressure in the world is not going to fix a low flow rate in a situation like this.
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l think we're talking the same thing in different terms, flow rate is expressed in ft/min., higher pressure will increase flow rate. When multiple outlets are opened the flow rate remains the same in the pipe, but is reduced at each of the multiple outlets.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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07-09-2019, 09:37 AM
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#6
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,563
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Quote:
FYI, Most RV plumbing is tested to 60 PSI maximum.
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That's old info. RVIA standards are higher now and the last edition I saw required a pressure test of at least 80 psi. I've heard it was increased again to 100 psi but cannot verify that except that Rev Group manufacturing claims they test to 100 psi.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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07-09-2019, 09:55 AM
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#7
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Senior Member
Join Date: Nov 2015
Posts: 26,689
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RVIA Certified Tech Test............100 psi
Increase flow....
Remove the flow restrictors in the sink faucet aerators AND shower (in hose or handle)
Restrictors in aerators are removalble
Restrictors in shower hose/handle may be.....or may need to be enlarged using a 1/4" drill bit
Flow WILL increase w/o them.
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I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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07-09-2019, 10:02 AM
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#8
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,652
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Quote:
Originally Posted by Gary RVRoamer
That's old info. RVIA standards are higher now and the last edition I saw required a pressure test of at least 80 psi. I've heard it was increased again to 100 psi but cannot verify that except that Rev Group manufacturing claims they test to 100 psi.
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I have an old RV, whereupon I based my statement.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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07-09-2019, 10:17 AM
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#9
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Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: Tucson, AZ
Posts: 6,557
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I agree with Techwriter. When our pump failed I upgraded to the Remco Aquajet variable speed 5.3. It's a great pump and has worked well.
https://www.campingworld.com/aquajet...efault&start=1
__________________
97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV
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07-09-2019, 12:12 PM
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#10
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,652
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Quote:
Originally Posted by vito.a
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That webpage says 3.5gpm below in the verbage, which is correct?
" Powerful Flows
The ES delivers a 3.5 gpm flow rate, higher than nearly anything else for the RV industry. Reduced power consumption helps ensure compatibility with existing electrical systems."
EDIT: I found the info, 5.3 gpm @ 65psi, which draws 10A. Camping World must use cheap labor.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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07-09-2019, 12:58 PM
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#11
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Community Administrator
Tiffin Owners Club
Join Date: Sep 2013
Location: DFW, Texas
Posts: 21,256
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Quote:
Originally Posted by Gary RVRoamer
That's old info. RVIA standards are higher now and the last edition I saw required a pressure test of at least 80 psi. I've heard it was increased again to 100 psi but cannot verify that except that Rev Group manufacturing claims they test to 100 psi.
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Tiffin test theirs from the factory at 100psi.
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2017 Phaeton 40IH XSH Maroon Coral - Power Glide Chassis with IFS
Previous '15 Tiffin Allegro RED 38QRA and '06 Itasca Sunrise 35A
'16 Jeep JKU Wrangler Sahara or '08 Honda Goldwing
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07-09-2019, 01:43 PM
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#12
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Senior Member
Spartan Chassis
Join Date: Jun 2015
Location: Memphis, TN
Posts: 1,562
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We also upgraded to the Aquajet ARV variable speed pump, installed when we had our automatic water softener installed. It’s been great. We take all of our showers using the pump and really like, as someone else already said, that you can flush the toilet and wash your hands while the toilet’s refilling.
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Bill & Lynne
Memphis, TN
2017 Entegra Anthem 44B - Victory Blue
2016 Ford Edge Titanium
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07-09-2019, 04:40 PM
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#13
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Senior Member
Join Date: May 2009
Location: Mariposa, CA
Posts: 3,928
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Quote:
Originally Posted by Ray,IN
That webpage says 3.5gpm below in the verbage, which is correct?
"Powerful Flows
The ES delivers a 3.5 gpm flow rate, higher than nearly anything else for the RV industry. Reduced power consumption helps ensure compatibility with existing electrical systems."
EDIT: I found the info, 5.3 gpm @ 65psi, which draws 10A. Camping World must use cheap labor.
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There are several versions of RV Aquajet water pumps (BTW, shop around for price. Camping World wouldn't be my first stop):
Variable-Speed Pumps:
Single-Speed Pumps (also called the "Rebel"): -- less expensive, but more current draw, than the variable speed pumps
__________________
2003 - 2010: 2004 35' National RV Sea Breeze LX 8341
2010 - 2021: 2001 41' Newmar Mountain Aire 4095
2021 - ???? : 2001 31' National RV Sea View 8311
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07-09-2019, 04:49 PM
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#14
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Senior Member
Newmar Owners Club Texas Boomers Club Freightliner Owners Club
Join Date: Nov 2014
Posts: 116
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Thanks to the OP for starting this thread. I have been wanting to do the same thing but had the same questions.
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Warren Wilkerson
2013 Newmar Ventana DP 4018
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