SEAFLO 33-Series Water Pressure Pump - 115V AC, 3.3 GPM, 45 PSI, Self Priming, Smart Pressure Switch, UL & CSA Certified, for RV, Caravan, Off-Grid, Marine, and Industrial Use

RV water pump in our fifth wheel went out so I purchased this to replace. Was able to plug into outlet in wetbay and have been using it since purchased in November of 2023. We full time so this pump is used daily to pump for showers, RV washer, dishes etc. Pump is still working well. Have noticed a pulsing of the pump that is about 30 seconds intervals; however, that may be due to a small leak we have elsewhere in the fifth wheel that we have been unable to locate. All in all this pump has done it's job well for the past 15 months we have been using it daily.

Works great! I have abused this pump for the past year and she is still going strong! Would buy again

I am not a plumber, but consider myself pretty handy. This is the 4th and final pump I got from Amazon as part of the camp shower build process (NOT defective, just trying different options). Here's what I learned, hopefully this will be helpful to others who are building outdoor camping showers.1. The pumps plastic male fittings don't match box store brass fittings. They likely won't leak in plastic-on-plastic installations, but if you're screwing a metal female fitting onto the pump's plastic male fittings, they won't fit and will leak, even though technically both will say 1/2". I used flexible 1/2" hose and some hose clamps to make it work and avoid brass to plastic fittings.2. This is an on-demand pump. You plug it in, and it will sense if water is being requested anywhere in your system and start pumping. Plan to build a system that's as leak-free as possible or this pump will continue to cycle periodically. I built a prototype garden hose system, which was full of leaks, and this pump kicked on for a second every 15-20 seconds because it assumed I was requesting water (even though it was just leaks). If your system is leak-free, the pump will stay off and silent until you open a valve somewhere in the system.3. I bit the bullet and bought the $70 PEX crimp tool, which greatly simplified building my shower system. You'll need the crimp tool, some metal ring clamps, and a few baggies of elbows, tees, splicers, and shut-off valves. I was able to build my system with zero leaks. If you're doing this, get white PEX 1/2" line, it can be used for hot/cold/any water, in other words, blue cold line, red hot line, and white neutral line are all identical and differ only cosmetically. Don't think you need to buy red line to run hot water, there's nothing inherently special about color lines - they are all the same, and the only reason they are colored is to tell them apart.4. The pump is not silent and will vibrate, which means you'll need to attach it to some kind of a solid substrate very firmly. Mine is outside and the noise is not a problem, but if you're doing an RV/interior build, you'll definitely hear it kick on and work, especially if it's bolted to a hollow surface, like under the stairs. Find a way to bolt it to a cinder block or an anvil to dampen the vibration.5. My system includes a shower and a sink for washing hands (same line, split via a T connector), and this pump is pretty amazing at supplying strong pressure across 10-15 yards through 1/2" PEX lines. You'll be able to take on-demand showers with serious pressure. My wife is still freaking out about the awesomeness of taking pressurized showers in the middle of nowhere. Apparently, gravity/solar showers are huge bummers with ladies who wish to wash their hair, who knew.Overall, if you also grab some flexible reinforced tubing with clamps to bypass brass-to-plastic size fitting size issue, you'll be able to build whatever you need. Strongly recommend.

My kitchen faucet was putting out about 30 PSI, sometimes less when others are using water elsewhere. I installed this pump under the sink to boost the pressure for the faucet. The unit was pulsating (shaking) a lot after installation. I adjusted the hex key knob to stop the shaking when water is running at full. When I open the faucet less than full, it still shakes. I am getting a more satisfactory water flow when the unit is running. But the pump as loud as a window AC so I put a power switch to easily turn it on only when I need it.Secondly, I had to install this for the cold water only because the instruction says the inflow should have 1/2" diameter. The kitchen faucet connection is 3/8" and that caused the unit to shake. I ended up changing the stop valve. And since I live in an apartment, I cannot install the pump further up the piping to pressure the water before it enters the heater. So, I think I will have to install another pump if I want the hot water pressurized too.Installation is easy if you have the following:1. Access to a 115v outlet.2. 1/2" inflow piping.3. Know how to buy adapters to make the connections.

For many years, I've been tapping off my CNC machine's coolant sump pump for the wash-down hose. Anyone who has a CNC machine knows what I'm talking about. But sump pumps are really not designed for lots of pressure, and the wash-down has always been lacking in that department. On a whim, I picked up one of these pumps to give it a try.First thing I ran into was what others have mentioned, a 1/2 pipe thread fitting doesn't really screw onto the plastic fitting threads on the pump body. It goes on about one turn is all, if even that much. The thread pitch of the plastic is actually the same as 1/2 pipe thread, but it's not tapered.However, using a 1/2 pipe thread tap and some elbow grease, I was able to open up the inside of the 1/2 fip x 3/4 male hose end brass fitting (an off-the-shelf piece at Home Depot, SKU 894907). Wrapped some teflon tape onto the plastic and I was able to screw it about halfway on. Works good and doesn't leak. I'll include a picture.On the inlet side, I attached the included filter and then the included plastic 1/2 hose barb fitting, then a short piece of clear vinyl tubing to the sump. It only has to lift the coolant a few inches.Plugged it into the machine's "Coolant 2" plug, powered the machine on, turned on the coolant 2 function, squeezed the sprayer's trigger, and voila, great pressure! Not quite pressure washer level, but plenty to blast chips out of the far corners of the machine. Very impressed with the both the pressure and volume delivery, it's a massive improvement over the sump pump.The pump is very quiet, and kicks on as soon as I pull the trigger on the sprayer, and shuts off as soon as I release it. Really a slick little pump that solved my problem nicely. I can't believe I've gone all these years putting up with low pressure, when the solution was so simple and inexpensive.The life of the pump is still an open issue, but it has a 4 year warranty. If I get that out of it, I'll have my money's worth. If it dies before then, I'll update the review. But as of right now, five stars for this little pump.