jimh406
Western MT
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All kidding aside, I could have used something like this before I bought my last pump. Mine is still working years later, so I guess I got lucky.
'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.
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TCBear
USA
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Joined: 10/06/2023
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1 GPM "SINGLE FIXTURE" WATER PUMPS FOR SMALL RVS
The posts above relate to "standard" RV water pumps in the 3 gpm range. These come with 1/2 inch hose fittings for both inlet and outlet, and generally require a 10 amp RV fuse.
Should you need to replace a 1 gpm "single water fixture" pump in a small RV, these have smaller 3/8 inch inlet/outlet fittings due to their lesser flow, and usually require a 5 amp RV fuse.
For some reason the 1 gpm pumps tend to operate at lower pressures (typically 30 to 35 psi) than the 3 gpm pumps (typically 45 to 55 psi), perhaps because it's anticipated that pumps for small RVs will have shorter lengths of plumbing to push water through, and therefore less overall flow resistance to overcome via a higher pressure. (Imagine pumping a gallon of water through 10 miles of pipe versus 10 feet of pipe. HUGE difference. Pumps push...but pipe and fittings push back.) So long as you keep pressure below 60 psi in a common PEX RV plumbing system (generally white, red or blue tubing rather than older gray tubing, the industry standard since circa 2000), you should be fine.
In addition to the off-brands of 1 gpm pumps, here's two name brands:
FLOJET
-#RLFP122202A or #LF122022
-12 volts
-1 gpm
-35 psi
-3.5 to 4.0 max amps
-5 amp or higher RV pump fuse
-Bypass valve to reduce cycling and pulsation
-56 mm x 84 mm mounting hole spacing
-Run-dry survivability
-Two 3/8" barbed fittings included, strainer sold separately. Can use Flojet #01720023S or #01740-003S in-line 3/8" strainer or generic via search of "3/8 pump strainer."
-2 year warranty
SHURFLO
-#105-003 OEM or #105-013 Aftermarket, same pump
-12 volts
-1 gpm
-30 psi
-2.5 to 3.0 max amps
-5 amp or higher RV pump fuse
-57 mm x 81 mm mounting hole spacing
-Run-dry survivability
-Two 3/8" barbed fittings included, strainer sold separately. Can use Flojet #01720023S or #01740-003S in-line 3/8" strainer or generic via search of "3/8 pump strainer."
-1 year warranty
It's easiest to replace a standard pump with a standard pump, and a single fixture pump with a single fixture pump. The original pump choice made by your RV builder is most likely accurate, with little need to upsize or downsize for most folks. But should you want or need to switch from one flow range to the other, you'll need to address both the differently sized fittings and possibly fuse amperage and switch amperage as well. You may be able to find different threaded adaptor fittings to do so. If not, simply use barbed hose adapters via an InterTube search of "reducer barb 1/2 3/8." #APXC1238 is carried in Home Depot stores, #BHB-393NL (sharper and better barbs -- you can use it as a prison shiv) is carried in Lowes stores, and also see #RF885 online. For a simple coupler to join two pieces of 3/8" tubing together, see #BHB-290NLB, #APXC3838, or Everbilt #800069. For potable 3/8" reinforced vinyl tubing (3/8" ID, 5/8" OD), see Eastman #98627, EZ-Flo #98626, Everbilt #HKP002-PVC001, or generic bulk hose on EBay. Use proper, small hose clamps that max out close to 5/8" such as Ideal #6260419, Apollo #IDL15 or Everbilt #6260294. Note that some of the generic 3/8" strainers have a bizarre 0.492" outer dia. barb that is intended to fit both 3/8" and 1/2" tubing, so read carefully and consider paying extra for the Flojet strainer. Flojet states that 3/8" barbed hose fittings (and therefore the entire water system) can flow up to 2.1 gpm, so a standard 3 gpm pump can't likely be fully utilized to its capabilities in a 3/8" system.
Or you can train your dog to push a manual hand-pump with his paws whenever you're in your RV. Trust me, he'll do it for hot dogs.
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TCBear
USA
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Joined: 10/06/2023
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RV WATER PRESSURE REGULATORS
Reiterating StirCrazy's concerns from an earlier post, wherein he was unknowingly experiencing 120 psi municipal water pressure spikes in his RV (spikes, if any, most often occur at night after industry shuts down and water demand slows, allowing pressure to rise). If you connect to a community water supply at campgrounds or RV parks (rather than simply filling your freshwater tank with a hose), you should definitely install a $15+ water pressure regulator, which limits water pressure into an RV at a manageable 40 to 55 psi. Very easy to install. There's many to choose from, adjustable and non-adjustable, with psi gauge and without. Google "Camco 40055" to Camco's website for a good description and photos of how they work.
And don't forget that while you can fill a freshwater tank with any garden hose so long as you flush it for at least 5 seconds (avoid dubious RV dump station hoses), for an RV park connection you need to use a "drinking water" hose, often white in color. These won't leech vinyl byproducts into the stored water as the hose warms in the sun.
I solely boondock camp, no utilities, so perhaps others can comment on their experience with these pressure regulators.
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StirCrazy
Kamloops, BC, Canada
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Joined: 07/16/2003
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TCBear wrote:RV WATER PRESSURE REGULATORS
Reiterating StirCrazy's concerns from an earlier post, wherein he was unknowingly experiencing 120 psi municipal water pressure spikes in his RV (spikes, if any, most often occur at night after industry shuts down and water demand slows, allowing pressure to rise). If you connect to a community water supply at campgrounds or RV parks (rather than simply filling your freshwater tank with a hose), you should definitely install a $15+ water pressure regulator, which limits water pressure into an RV at a manageable 40 to 55 psi. Very easy to install. There's many to choose from, adjustable and non-adjustable, with psi gauge and without. Google "Camco 40055" to Camco's website for a good description and photos of how they work.
And don't forget that while you can fill a freshwater tank with any garden hose so long as you flush it for at least 5 seconds (avoid dubious RV dump station hoses), for an RV park connection you need to use a "drinking water" hose, often white in color. These won't leech vinyl byproducts into the stored water as the hose warms in the sun.
I solely boondock camp, no utilities, so perhaps others can comment on their experience with these pressure regulators.
that was actually in my house. if you got that in a RV you would swimming in no time and launching the cheap plastic tap sets all over the place haha I always use a regulator on my rv's, I just assumed when I bought the house there was one installed already as it is required under building codes up here.
2014 F350 6.7 Platinum
2016 Cougar 330RBK
1991 Slumberqueen WS100
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valhalla360
No paticular place.
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Joined: 08/19/2009
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jimh406 wrote:All kidding aside, I could have used something like this before I bought my last pump. Mine is still working years later, so I guess I got lucky.
We replaced a 20yr old pump many years ago and then used it flawlessly for 5yr before selling the boat. Never had another fail. We just bought the cheapest readily available pump.
We full time and only operate off the fresh water tank, so they get heavy use.... must be lucky or they are all pretty reliable.
Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV
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TCBear
USA
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Joined: 10/06/2023
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TWO ADDITIONAL U.S. BRAND PUMP CHOICES
In case you wanted yet more options for U.S. branded 3 gpm pumps, I recently came across two additional obscure options, the Camco #22491 and the made-in-USA Remco Series 3200. Remco is a longtime manufacturer of boat pumps and other pumps, and Camco is an established component supplier to the RV industry. (Remco also makes 1 gpm pumps for small RVs.) Little in the way of Amazon user reviews for either pump -- they're somewhat obscure choices -- although that shouldn't necessarily be a disqualifier.
CAMCO #22491
-One pump model offered
-3.0 gpm flow
-55 psi max pressure
-7.5 amps max draw
-10 amps or higher RV pump fuse assumed
-Bypass valve to reduce cycling and pulsation
-Plumbing strainer and two straight ½ inch connectors provided
-Can run dry without damage
-5/10 minute duty cycle – 5 min full flow, 10 min cooldown, like the Lippert pump
-2 year warranty
REMCO SERIES 3200
-3.2 gpm flow
-45 psi max pressure
-8 amps max draw
-10 amps or higher RV pump fuse assumed
-Unknown if bypass valve is provided
-Plumbing strainer and two connectors provided, one straight, one 90 elbow. Like Flojet, Remco uses proprietary o-ring fittings, which shouldn’t be a complication for most folks. Note that Remco confusingly refers to "3/4 inch" fittings, but they're talking about the 3/4" holes in the pump head the fittings press into. The barbed hose end of each fitting appears to be a standard 1/2". Their catalog lists alternate proprietary fittings available.
-Can run dry without damage
-Can be wall mounted with the pump module above the motor
-Made in the USA
-1 year warranty
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TCBear
USA
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![[image]](https://www.classacustoms.com/cdn-cgi/image/quality%3D85/assets/images/12v%20flojet%20pump%202.jpg)
Image above-right of recommended 36 inch long noise/pulse reduction hose loops as depicted in Flojet owner's manuals. Helpful for any brand or type of RV/boat water pump.
Text says "Note: To help reduce noise and vibration of the pump through the system use flexible lines on the inlet and outlet of the pump as shown above. Be sure to use lines rated to not collapse under pump vacuum." (Shouldn't be an issue with the reinforced thickwall hose previously mentioned.)
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TCBear
USA
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ONLINE RV WATER PUMP OPERATION MANUALS
LIPPERT
https://support.lci1.com/flow-max
VALTERRA
https://www.valterra.com/downloads/
FLOJET
https://www.xylem.com/en-us/brands/flojet/flojet-products/rv-water-system-pump-series/documentation/
SHURFLO
https://www.pentair.com/en-us/products/residential/water-supply-disposal/recreational-vehicle/shurflo-revolution-4008-series-by-pass-pump.html?queryID=db4b20705223bbb3e90973034b84ba63&objectID=https://www.pentair.com/en-us/products/residential/water-supply-disposal/recreational-vehicle/shurflo-revolution-4008-series-by-pass-pump.html&indexName=prod_pentair_products
REMCO
https://remcoindustries.com/pump-products/rv-pumps/3200-rv-series/
https://www.tractorsupply.com/tsc/product/remco-power-rv-3200-series-32-gpm-45-psi-12-vdc-on-demand-rv-fresh-water-pumps-fittings-and-filter-included
CAMCO
(Manual unavailable)
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