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07-21-2020, 01:40 PM
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#1
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,869
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Great water pump?
I need a really good 12V DC water pump for the solar powered tiny house I’m building. It needs to be like an RV water pump with a pressure switch and 45-60 PSI. It also needs to handle the heat of southern Arizona summers. My water is stored above ground. I haven’t tried a submersible pump, but I’m open to the idea.
I've tried Seaflo and USA Adventure pumps - one quit and the other is struggling. What do the big Class A RVs use? The house is a 40’ shipping container conversion so the sizing is similar.
I figure one of you guys will have a great idea. Thanks!
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
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07-23-2020, 05:54 PM
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#2
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Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe according to the Rinpoche, of the SF monks.
Posts: 7,395
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We have a "Shurflo Revolution" in our MH. About $60.00 or so. 3 GPM, 12VDC, 55 PSI, 7.5 Amps.
They are like any electric motor, not happy to run on low voltage, so that might be the problem.
Check your voltage at the pump while the pump is running. It shouldn't drop much below 11.5 volts.
If it is dropping, use bigger wire for the power supply and ground.
Happy Glamping.
__________________
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
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07-23-2020, 06:34 PM
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#3
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,869
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The problem seems to be related to water hammering from the pump going on and off so frequently. It is connected to 2 swamp coolers that use a small amount of water frequently. I installed 2 arrestors and the pump is running with less thumping and also cooler. Hopefully it will survive until the weather cools.
I was really hoping to find a different type of 12V pump that would work in my tiny house. I'm going to take a look at the Revolution. Maybe it has some advantage.
Thanks!
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
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07-23-2020, 08:38 PM
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#4
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Senior Member
Winnebago Owners Club Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe according to the Rinpoche, of the SF monks.
Posts: 7,395
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Do you have an accumulator in the system?
It would really help lessen the hammering.
Happy Glamping.
__________________
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
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07-24-2020, 12:09 AM
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#5
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,869
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An accumulator will be the next step if the arrestors don’t keep it under control. One is homemade using leftover pex and a pex x 1/2" threaded fitting.
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
[SIGPIC][/SIGPIC]
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07-24-2020, 12:36 AM
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#6
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Senior Member
Winnebago Owners Club
Join Date: Nov 2014
Location: Washington State
Posts: 602
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Maybe look for an RV pump with a built-in bypass valve. They work great for small trickles. Mine is the Sureflow Revolution 4008 and it works great on low flow. Also give a decent shower.
An accumulator is also a cheap and a easy fix for your problem. It can be a little annoying as the pump runs for quite a while to recharge the accumulator, but it will run a lot less often.
__________________
_______________________
2014 Itasca 27n
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07-24-2020, 07:54 AM
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#7
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,869
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Quote:
Originally Posted by danhannah
Maybe look for an RV pump with a built-in bypass valve. They work great for small trickles. Mine is the Sureflow Revolution 4008 and it works great on low flow. Also give a decent shower.
An accumulator is also a cheap and a easy fix for your problem. It can be a little annoying as the pump runs for quite a while to recharge the accumulator, but it will run a lot less often.
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Amazingly this pump is cheaper than all the others I’ve bought. I ordered one since it’s probably a good idea to always keep a spare water pump. I also ordered a 2 gallon accumulator tank. Thanks for your help!
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
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07-24-2020, 11:54 AM
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#8
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Member
Join Date: Feb 2017
Posts: 61
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This pump should do the trick. I would definitely add an accumulator to the system for even water flow and no hammering.
https://www.usaadventuregear.com/pro...20403384320113
__________________
Jeff
2012 Forest River Salem Villa Estate 393RLT
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07-24-2020, 01:14 PM
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#9
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Senior Member
Join Date: Mar 2016
Location: Arizona
Posts: 1,134
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+1 on adding an accumulator. The bigger the better if constantly having a sipping load. We put the small tank on our RV. A small hand wash in the middle of the night would not cycle the pump.
__________________
2016 Fleetwood Bounder 33C. Towing 2017 Jeep Wrangler Unlimited.
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07-24-2020, 06:02 PM
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#10
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,869
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Quote:
Originally Posted by Elwood58
+1 on adding an accumulator. The bigger the better if constantly having a sipping load. We put the small tank on our RV. A small hand wash in the middle of the night would not cycle the pump.
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I would hesitate to add a tank larger than 2 gallons in size. Space in an RV becomes more precious with time. I’m accustomed to being stingy with water but I can’t teach the swamp cooler that lesson.
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
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07-24-2020, 06:09 PM
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#11
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,869
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Quote:
Originally Posted by Balou
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Wow! That's a pricey little pump. I'm using one of that company's smaller pumps now. It does ok if I let it rest occasionally, so I’ve ordered a DC timer that will shut off power to it 15 minutes at a time several times per night. Thanks!
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
[SIGPIC][/SIGPIC]
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07-24-2020, 06:13 PM
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#12
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Senior Member
Excel Owners Club Winnebago Owners Club Ford Super Duty Owner
Join Date: Aug 2014
Location: Santa Fe, NM
Posts: 6,814
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Barb,
I use a Shuflo 4148-153-E75 with a two gallon accumulator or pressure tank. It takes about 25 secs to fill the tank. Then we can operate off that all night or all day while driving without the pump coming back on. At first I tried a lesser pump but it did not like to play well with the accumulator.
Good luck.
Fred & Denise
__________________
Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO & Coach House 272XL E450
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB
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07-25-2020, 11:02 AM
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#13
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Senior Member
Solo Rvers Club iRV2 No Limits Club
Join Date: Feb 2011
Location: Yuma County, AZ
Posts: 10,869
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Quote:
Originally Posted by rarebear.nm
Barb,
I use a Shuflo 4148-153-E75 with a two gallon accumulator or pressure tank. It takes about 25 secs to fill the tank. Then we can operate off that all night or all day while driving without the pump coming back on. At first I tried a lesser pump but it did not like to play well with the accumulator.
Good luck.
Fred & Denise
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Hi Fred!
Now you tell me! I just purchased a Shurflo Revolution pump and a tank. If it can’t keep up I'll return it to Amazon and try yours.
If you and Denise plan to boondock in the desert this winter I have plenty of extra space. And this place is the ultimate social distancing with neighbors 1/2 mile away. I’d love to hear about your Alaska trip!
__________________
Barb (RVM18) with Morkies Lily & Bebe RIP Sena FMCA#F466348
"Homer" ‘11 Shasta Cynara, pulling "Ranger" '97 Ford Ranger toad
The Journey is Our Destination. Full-timer May 2011 - July 2021
[SIGPIC][/SIGPIC]
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07-25-2020, 11:08 AM
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#14
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Senior Member
Excel Owners Club Winnebago Owners Club Ford Super Duty Owner
Join Date: Aug 2014
Location: Santa Fe, NM
Posts: 6,814
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Quote:
Originally Posted by okmunky
Hi Fred!
Now you tell me! I just purchased a Shurflo Revolution pump and a tank. If it can’t keep up I'll return it to Amazon and try yours.
If you and Denise plan to boondock in the desert this winter I have plenty of extra space. And this place is the ultimate social distancing with neighbors 1/2 mile away. I’d love to hear about your Alaska trip!
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Hey Barb I just turned into this thread- sorry. We'll keep the idea of sharing a small piece of the desert open as an option this winter. If I can post it here without seeming like a thread hijacker, I'll write up a short version of the trip and give a detail in person.
Oh, in case you did not know, set the tank pressure to 2 PSI lower than the cut-in pressure of your pump. Otherwise the pump won't see a low enough pressure to turn on. True on most all pressure like tanks.
Hope everyone there is doing well.
Fred
__________________
Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO & Coach House 272XL E450
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB
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