SEAFLO 21-Series Water Pressure Diaphragm Pump - 12V DC, 1.2 GPM, 35 PSI with Adjustable Pressure Switch, Self-Priming, Quiet Operation for RV, Boat, and Off-Grid Applications

Only 2 months in, so durability not evaluated yet. Overall whilst I haven't experienced any measure of longevity yet, the "fit, form and function" of this fresh pump seems to be quite the value for basic needs such as mine. Surely not the same total experience as a higher flow pump with multiple diaphragms and increased noise abatement, but for those who don't need such a premium experience (with quite dear costs) this pump is quite nice and presents much better value IMO. Bottom line: - Noise level: Not measured, but quite acceptable to me. With it mounted directly under the berth I *do* hear it throughout the boat, however at absolutely minimal volumes that I don't foresee waking anyone except the lightest sleeper. If the tank goes empty and it starts pushing air it will hammer a bit. Some day I'll break out the db meter and measure this. - On demand sensing works great - when I turn on the faucet, water is there and continues to be there. This is perhaps the most important aspect to creating an "at home" experience - no footswitches or pumps, not buttons, just a regular ole faucet. - No hammering or surging even with just a single diaphragm until water gets low - if it starts drawing air then it hammers. To be frank I like this as I don't have a gauge in my fresh tank, so this acts as my alert that water if very low. - While I have only two faucets, the flow is quite sufficient. Wash dishes, even rinse down cabin floor or countertop without any problem. - Same install as any other pump, quite easy particularly when combined with pex. I have to remind myself to take some photos / videos for everyone. I used this to replace a manual freshwater plumbing system in my sailboat and honestly I kind of hate the maritime industry, so when I saw an item that was more appropriately priced for it's design and manufacturing costs, I decided to give it a try. I'm very glad I did, this little guy so far is proving itself out very nicely. I've already recommended it to several rag haulers who are still pumping faucets.

We have an older (1991) motorhome that still had its original water pump. Since we bought the RV when it was already 27 years old, we didn't think much about how noisy the old pump was when it ran and how much it vibrated all the pipes. It got so bad that it actually cracked a PEX connector in my plumbing from all the vibration. Fortunately we caught it before too much of a flood. That was the incentive to look for a better pump in hopes of getting one that would be quieter and not vibrate the whole RV when you flushed the toilet. After doing quite a bit of research and looking at reviews we chose the SeaFlo pump. It's a good name brand and had a reputation of being relatively quiet. We couldn't be happier with it. We installed it with a SeaFlo Accumulator tank (0.75 l) and after hooking it up and wiring it up I went ahead and turned it on. At first I thought it wasn't working because I didn't hear ANYTHING! However the water started coming out the faucet and when I got closer to it or put my hand on the pump it was clear it was in fact working, but was living up to its QUIET reputation. I highly recommend this pump. You could spend less on a cheap knockoff import unit, but seriously is it really worth saving a few dollars on something that probably won't last and may be rather noisy when you can get the best with SeaFlo. And no, I'm not paid by SeaFlo to do this review, I'm just incredibly impressed with the quality and want to share that.

1 Car Battery 1 Regular size hose 5/8 or 3/4 2 Hose iron Clumps or fasteners or whatever It works great, easy set up and it silent like it like a mini fan. The size fits anywhere, it looks pretty good and doesn't take up plenty of space. It last plenty long and it is durable I dropped it before I even used it for the first time. I thought that it would be the end of the world if it did not work, but it worked fine. The pressure is good i would get a few gallons in less than minutes. YES I WOULD BUY IT AGAIN.

This RV water pump runs better than the old one but it is still so loud when it cycles. The water flow & pressure are definitely improved. We had no problems with installation. Very easy.

My truck has a short bed so I had to compromise and take out my spare tire. I originally had a pressurized water tank in the bed, but took it out because it took up too much of what little space available and I blew the tank when I put too much pressure. But that's another story. I am running a SeaFlo 33 series pump with an accumulator tank. I have a two switch set up. One in the cab and another in the bed by the passenger side tail light. I like to be able to cut off the power from the cab. I did not come up with this design, but was inspired by Sponsored By Wifey's YouTube Channel. I based my build on his video "A look at my onboard water system on my Toyota 4Runner" . I am two water tanks. A 4 gallon mounted above the receiver hitch and a 3 gallon right behind the differential and near the crossmember. Both tanks are 6" PVC. They connect to the SeaFlo 33 Series via a garden hose splitter. I am able to control which tank I am drawing water from. The intake is also the outflow and controlled by a 4 faucet manifold. This allows me to fill either or both tanks with little trouble. Had to do some leakage mitigation; just a minor inconvenience. The pump and accumulator is mounted between the two tanks and is also connected to the manifold. After much trial and error, my system works well. Now for the review of the pump. The SeaFlow series by itself is a good pump. To be honest, I have not operated the pump without an accumulator. Based on the the recommendations I bought the pump and accumulator and installed both at the same time. The flow is strong. The self priming feature is great and The fact that I do not have to worry about the pump running dry is a relief. The pump itself is hefty. I feels durable. My only concern are the plastic fitting for connecting your hose line to. Other than that, it seems durable and well made. The pump has been working well and with the accumulator is very quiet. I am very happy with this pump.

I have this pump mounted to a wood frame to pump water from my home's well to irrigate my potatoes and black raspberries. When I can babysit it, I connect it to a 12-volt automotive battery. This battery is recharged by a 100W Renogy solar panel, controlled by a small charge controller. The specs of this pump said the maximum head lift is 9-feet, so I cut the siphon (inlet) tubing 9-feet long. The water level in my well is about 9-feet below ground, so it was barely long enough to reach. I added another 5-feet of tube and found that it pumps water and mostly maintains a prime, although sometimes it'll lose the prime and stop pumping. So far, I'm pleased with its performance.

This would give this ZERO if I could. The pump worked great for a few weeks, then quit working. Wouldn't turn on and no power was going to it whatsoever. No worries, we had purchased the warranty plan with Amazon. Went to use it and they said try utilizing the seller's warranty first since it should still be under one with them. Sure no problem, makes sense. Reached out to the seller and explained what happened, they said ok we are going to send you a replacement part, this is usually the issue. Great! Give them the address and wait. 8 days later, no response, no tracking nothing. Reached out again and oh my apologies here is the tracking, gave us the tracking number and low and behold they never sent it until I reached out about it. Got the replacement part and still had the same issue. Reached out and they were wanting us to send the unit back to them at our cost and try to repair it instead of completely resolving the issue that was under warranty. I told them I was not paying more into this and would escalate it needed. They asked for us to email and reach out ot one of their managers to get a better solution, I did and that went unanswered. There is a known durability issue with this pump and even tho it should be under their warranty they want you to jump through all the hoops and still get no resolution. I'm glad I purchased the Asurion protection plan, they were more helpfully than this seller has been and got it resolved within 10 minutes. This seller is unwilling to help so be forwarned, the pump works great for about 6 months and then it doesn't.

I'll update this review when I actually RECEIVE the product, but currently I'm going on 6 weeks for actual delivery of this. I ordered it May 1 and as of June 9, still no pump. The delivery time period shows sometime between May 28 and June 14 (no PRIME shipping was available when I purchased it - but I see it is NOW...), but every other product I've ever ordered from Amazon with such a broad shipping timeframe still arrives within 2 weeks... With several other reviews on here saying they got theirs quickly, I'm getting concerned my order was lost and I may be out $28... I hope not, but I can only assume they're shipping this from China on a row boat, it encountered a monster storm, sank, had to be retrieved by a submarine, was placed on another row boat, Nigerian pirates commandeered the second row boat and are holding my pump for ransom... You get the idea. I trust it'll be a good product when it does arrive, but I hope the 2014 camping season isn't completely over by the time it does. I need this for my popup trailer now! Two separate orders for LED lightbulbs placed on the same day and given the same broad shipping time period were received several weeks ago. This is getting a bit ridiculous. I'll update this with a review of the product itself when it does arrive. Shipping sucks though. Pay for 2-day shipping. I wish I knew that when I bought it. I may not have time to install this before our second trip. I'm already going to miss out on it for our first trip this year. UPDATE: I was supposed to receive the pump by June 13, but that date came and went. I had little-to-no expectation of receiving a refund for some reason, but contacted the seller and explained the problem. They answered promptly and refunded my money within a couple of days. I went ahead and re-ordered (this time with PRIME shipping) and received the pump yesterday on-time. I will install it in my popup trailer in a couple of days and update the review with the pumps functionality at that time. Great response by the seller though! UPDATE PART 2: I finally got to the install today and found like other buyers that it came with no instructions whatsoever. Power wires are pretty self-explanatory (red is +, black is -), but the inlet/outlet ports weren't even labeled. I connected 3/8" tubing to each side and after a quick test on my popup trailer battery found that left is inlet, right is outlet. Install went smooth and easy. I t'd into the water line for the hand-pump side of my faucet (Leisure Components faucet purchased on Amazon) and plugged into the inlet of the pump. From the outlet I plugged the hose into a t'd connection I installed in the city water hose. Wired it up and tapped into the power wire for my thermostat, grounded to the frame, and I was good to go. I installed a toggle on/off switch so that I can bypass the water pump entirely if need-be for some reason. The pump is a little bit noisy by itself, but once the dinette cushions are back on and particularly if there are some additional items in the space under the dinette seat, it's actually very quiet and muffled. The reviewers who claim it's loud enough to wake up the whole campground are exaggerating a TON. The mounting feet are thick rubber to help dampen the noise and not spread vibrations through the trailer frame, but I cut up an old mouse pad and used that as a buffer between the pump and trailer frame as well to help with that even more. All things said, I'm extremely pleased with the purchase. I can still pump water with the faucet as normal, can plug into city water if available, and can use the water pump itself for those times my family doesn't want to have to pump water from the facet when we're boondock camping. The $30 price tag and free shipping simply can't be beat either. AWESOME product!