SEAFLO42 Series 12V 3.0 GPM 55PSI Continuous Duty Diaphragm Pump with Bypass for Reduced Cycling, Fresh/Salt Water, 4-Year Warranty, UL & CSA Certified, Self-Priming for Marine, RV, Off-Grid, Boats

Excellent product. Super quiet, very easy to install, perfect fit for my setup, very well made. It comes with a rubber base to absorb vibrations which makes it quieter than it already is.I’ve been using it daily for about a week now without any issues. My daily use is basically to water my garden which takers about 30 minutes of continuous use and supply a toilet and a sink that are off grid. Suction head of my setup is about 2 feet and the other end head is about 10 feet, no issues at all, pressure is great and the auto shut off works flawlessly. Mine is powered by a small battery bank of about 50amps that is connected to a wind generator so is completely off grid.If you want a quiet, powerful, easy to install, great quality 12 volts pump; look no further this is the one you need!!!

I use this pump as the main pump for a domestic water system at my off grid cabin. It's powered by a 12v battery that is charged by a solar panel, and it pulls water from a 100 gallon agricultural spray tank. It has plenty of flow and pressure for washing dishes or taking a shower, and it puts out fairly steady pressure for a diaphragm pump- I haven't needed to add a surge tank. It's mounted to one of the posts under the floor of the cabin and it's quiet enough to not really be very audible when running. It's survived several seasons of use without noticeable wear and tear. I drain it down every winter and remove the screen and have had no freeze damage. The water it pumps from the tank ranges in temperature from 45 degrees to 90 degrees depending on the season and it doesn't seem to make any difference to the pump.

Works great and is quiet.

I love these pumps I have bought them in the past and have had very good experience.This one came with the original box torn and the plastic rapper damaged showing that the pump actually fell from the box also the small parts were missingI am returning this pump because there is no way I can take it to Jamaica.I am giving this pump 5 stars because of all good past experience, I know that this is a very good pump it was just handled poorly.I hope I can get a replacement by Tuesday 10th JuneI love these pumps.

We installed this in spring of 2000, on top of a 5-gallon horizontal pressure tank. All features work properly.Today, however, it stopped working, not for lack of water to pump.I unpacked the insulation from the assembly (It's insulated because it sometimes freezes for several days in Virginia.) and found the mounting bracket in pieces ranging in size from a few grains of sand to four inches. There's a bunch of oily residue on the tank under the pump. I don't know where that came from but at least it hasn't started a fire.In trying to figure out why it's not running, I discovered one of the wires from the pressure switch to the motor is intermittent.After removing all the broken pieces of the base, I used a piece of exercise mat underneath and zip-tied it to the mount plate on the pressure tank.We are now looking for an alternative. I'm not sure the 55 series pump will do the same. Maybe another manufacturer. I do like the concept of the pump-pressure tank assembly. We'll see.

This was an easy install replacement. I thought about rebuilding the old leaky pump but that didn’t make sense when a new pump was this inexpensive. I am pleased with how quiet this pump is compared to the original. I would recommend this pump.

I don’t typically leave negative reviews, but this could literally be life or death for someone and I feel a responsibility to inform anyone who may be relying on this for potable water, or any situation where the products failure could be catastrophic.Sure it is quiet, inexpensive, good psi, boasting low flow capabilities and an impressive warranty (granted I still needed to install an accumulator tank because mine still cycles, and people have reported they don’t honor their warranty) - but the pressure switch on this has caused catastrophic issues for many people (just search YouTube); as far as draining freshwater tanks out at sea due to melting the plastic water joints (not to mention potentially starting a fire).Well, its not a myth. I’ve pumped maybe 100 gallons simply to test the water system I installed in my sprinter. Worked great, so I thought maybe those people had it in too humid environments for too long and that caused the issue (still shouldn’t happen on a water pump, but ok you get what you pay for).Well, brand new pump… Dry location… Still returnable to Amazon… It seemed to work fine so I took a trip (I’m still on the trip trying to get a new pump sent to me on my way).First night (last night), it started shorting out when it reached pressure, just as it has been cautioned in the videos I have watched. It shorts enough to make an electrical short crackling sound and make the lights in the van flicker while the pump rapidly cycles on and off, but not enough to trip the fuse. Plus it still pumps water… for now…As such, I can certainly understand how if this was out of observable range (acoustically or visually), and not tampering with sensitive lighting dimmers (different circuit, non-isolated, same power source), one would not necessarily know that it’s shorting out until it’s too late and has melted itself, and potentially the connected plumbing (which is how this has unknowingly drained freshwater tanks at sea)…Thankfully I’m still under Amazon’s return window (yes it’s that new), and they will honor the return, otherwise I’d have to deal with the seaflo warranty that they don’t seem to honor (read reviews of them delaying by months, or going MIA, or even going as far as just telling people to just bypass the pressure switch and keep the faulty unit).I decided to buy a higher quality pump for peace of mind. And I’m not even out at sea. But the possibility of a fire? Or suddenly draining the freshwater tank into my van? Perhaps while 5 days out into the desert?Nope.It’s a known issue and simple fix seaflo. You could literally be the cause of someone’s demise for not just fixing this issue. It’s not just inconvenient; it’s potentially someone’s life if they are weeks from land or way off grid.Buyer beware.

Using with 1/2” braided hoses to pump deionized water from tank to hose gun for window cleaning. Gets the job done well. Automatic slowdown/pressure shutoff works great.