SEAFLO 42 Series On Demand Water Pressure Pump 12V 3.0 GPM 55PSI, with Bypass for Reduced Cycling, Self-Priming, For Marine/RV/Off-Grid, CE & Rohs Certified, UL Listed, 4-Year Warranty

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 well and very quiet. I have not had any issues with it.

Great product!

2-days after I installed this pump, it failed to work. It ran awesome for the first 2-days, pulling water from an external water tank, and keeping pressured water at my RV city water connection. The pump would cycle off, when we stopped using water, and would cycle back on, once the water was in use. We were leaving the RV, for a couple days, so I disconnected the pump, from the battery...just in case we sprung a leak in the RV. When we returned, and hooked the pump back up to the battery...nothing happened. I turned spigots on, nothing. I verified water was still flowing to the pump...all good. I felt the pump and the motor area was getting hot. I guess it was getting power. I unplugged the pump, for a few hours, and tried again. Nothing. What a shame. I did request a replacement pump, but it won't be here for at least a MONTH! Seriously? I can go to Amazon and place an order to the exact same vendor, for the exact same pump, today...and it is eligible for Prime 2-day Shipping. I am basically going to have to buy a cheap pump, so I can have water while I wait. Seems the company doesn't care much about previous customers...only new customers. When the new pump comes in, I will update this review...if the pump lasts more than 2-days. ---------------------------------------- New pump arrived, about 2 weeks later. Haven't had a problem with the replacement pump. Updated the rating from 1 to 4 stars.

I have a 2016 Grand Design Imagine 2800BH travel trailer. The stock pump died a slow, miserable death so I ordered this seaflo not really knowing what I was doing, I just tried to make the numbers all line up between the two like the pressure and amps. I was happy when the seaflo came and I saw that side by side they were a match. I watched a couple of youtube videos and installation seemed pretty clear. Each fitting was an exact match so I was able to swap the pumps with no problems at all. No leaks. Perfect pressure. And best of all it's like, 10x's quieter than the stock pump. So far I am 10/10 happy with the purchase.

5 Year update: Died on first fishing trip this year (March 2025). Pump has severe corrosion on all metal parts and all 4 mounting feet have broken off. Pump was mounted solidly on a horizontal surface using all 4 mounting screws. The space is ventilated and completely dries out between trips - Point being: Probably not the worst bilge environment it could have been subjected to. I reduced this from 4 to 1 star due to extreme corrosion and complete mechanical failure of the mount. There is no apparent anti-corrosion coating on any of the metal. I will be replacing this pump with a brand that utilizes stainless motor housings and at least attempt to provide some level of corrosion preventive coating. Even though this is an inexpensive pump, I DO NOT RECOMMEND THIS PRODUCT. Original Review" Replaced a 45 PSI, 5gpm pump with this pump. Added the accumulator tank to offset the 2 gpm reduction in flow capacity. Accumulator works like a mini pressure tank by having a captive air bladder which compresses under water pressure from the pump and gives you some added volume of water flow before the pump drops to its low limit and turns on. Less pump cycling, less power consumption, more volume at the higher pressures. Well, it works ok but I was spoiled by the old failed higher volume pump. Ran for 1 minute into a bucket with no nozzle and it moved 2 1/2 gallons of water. Not quite the 3 gpm they specified. 3', 3/4" diameter inlet hose and 2',3/4" diameter outlet hose to a10' long 1/2" i.d. coil hose. 18" draw to the pump from the inlet. Washdown gets it's use washing catfish slime off hands and boat. Lots of occasional use. Not as good a setup as the lower pressure, higher volume pump which it replaced. Picture is what was installed. Sorry, not diving the bilge for an install picture. It's in with 4 stainless screws which do not come with the pump. While your picking up the screws and clamps at Lowes, get a few waterproof elctrical crimps in their pump aisle. They shrink with a heat gun or lighter and give you a water tivht connection that will not corrode. Had to adapt inlet and outlet hoses in boat from 3/4" down to 1/2". That was preexisting plumbing and just meant a trip to Lowes for reducer fittings and stainless clamps. Fittings that came with pump are 1/2" and work fine. This absolutely is not up to washing down you deck. As soon as you bleed off the higher pressure and your into the flow the pump can supply you get a flow on par with what this 58 year old fart can do on his own... 4 stars for marginal flow which is 1/2 5gpm under rating. Probably going to buy a higher capacity pump and move this one to the freshwater system in the boat to replace a 1 gpm lame excuse for a pump there. My advice is, don't cheap out and get a low 5gpm rated pump. I think the SeaFlow is a good product for the money and will likely buy another one, just higher 5gpm rating.

Just installed, so don't know how the longevity is, but pumped right up to pressure and is very quiet.

Purchased with the pump Seaflow accumulator tank- great combination, very smooth consistent water flow and volumes super low. Fantastic purchase

I work in a quarry and have this for dust suppression on a crusher, been using it the past month now it's dry and it's running 8-12hrs a day 5 days a week. Most it's pumped in 1 day is about 4k litres with the bypass and pressure screwed to the max. It's running 1-4 nozzles (2 sprinkler and 2 hand type. the sprinkler in the picture is giving more water than it looks as its windy and hard to see where its that fine a spray) depending on how dry it is and sucking water out of dusty ibcs. Not much else you can ask of it when the pump it's replaced was 7 grand. The spray from the hand type in the picture is with 3 nozzles turned on at once on a flat setting.

Excelente!

Ja det är vad jag planerat, för mitt kök på landet, bra tryck och lätt ljud, slutar när kranen stängs. Jag giltig. Carina

We have used this product for 1 1/2years at our off-grid home. The only time we’ve had a problem was with ‘low voltage’ causing the pump to run on.. this was easily fixed on our part. We have purchased a second Seaflo pump to use with outdoor operations spring to fall. This reasonably priced, quiet, reliable pump is a true winner! The customer service for this pump is also quick to reply.. very friendly and helpful.