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Seaflo Boats and RVs Diaphragm Pump Review and Installation

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Review and How to Install the Seaflo Boats and RVs Diaphragm Pump


What is going on everybody Adam here with etrailer. Today, we're working on water pumps, but specifically we're working on the SEAFLO RV fresh water pump. You're probably replacing your water pump. So this one has the same exact footprint, right here as the one we replaced before. So even if you're going from a 3 gallon to a 3.3 gallon, it's gonna have the same footprint, everything's gonna connect up just the same This one was a 12 volt system. So all you really need to do is run a ground wire and power wire, but the wires are gonna be there since you're replacing the pump.

This one's gonna push out about three gallons per minute, and it's gonna give us about 45 psi. The pump that we took out was a three gallon per minute pump. And what we put in, three gallon per minute pump. We really didn't have a whole lot of issues with that. We liked the amount and we really just didn't want to go through our tank that quickly.

So that was good. But we did upgrade from a 40 psi to a 45 psi. And you'd be surprised what five psi does. So right now, like this is like perfect for cleaning off the dishes and stuff. Plenty of pressure and I really liked that, but the main thing I'm concerned with is the pressure in the shower.

I like showers. I like the high pressure, especially when I'm not really gonna take a long shower. I just wanna make sure we get plenty of pressure, so it's at least enjoyable. So, let's compare it. Before, literally it just went up and it didn't even hit this little screen.

So let's see if five psi gets us up there. Okay. It's not really like hitting it, hitting it and then coming and spraying down but it's getting there. So it's definitely increased, for sure. Let's compare it to a couple of different pumps. If you wanna stick with the 12 volt system, you can either go with this three gallons per minute or the 5.5 gallon per minute. So that's what this one is. And there're gonna be some that are gonna have a little bit more of a psi difference, but the 5.5 gallon for this camper, we only have one faucet here, one in the bathroom and then a shower, it's a little overkill. It's gonna be mainly for the bigger ones. If have an extra faucet or maybe even an extra shower or whatever. Definitely not for the smaller guys. And you will really, kind of go through your water pretty quickly. So if you are off grid, 5.5 in a small camper, you're gonna go through that tank. Typically smaller campers are like 25 to 60 gallon tanks. But when you get to the big rigs where this is probably gonna be your best option, they have like hundred gallon tanks. So you definitely wanna think about that. I think for this camper, three gallons per minute is perfect. And then the psi is just whatever you wanna choose. But if you do wanna get something in the middle, you might have to convert it over. You will have to convert it over to one 15. So we do have some pumps that are 3.3 gallons per minute, but it is gonna be 115 volt. You just need to convert it. But for this camper, I would just suggest that you get a three gallon per minute. Pick your psi. I like 55, 45 works, but stick with that 12 volt system. That's just for me. A lot of you guys are wondering if these are gonna be self-priming. Well, any option that you choose on our website are self-priming. Why don't you guys ask how to do it Literally just hook it up, give it power and turn it on. It will do it all on its own. But if you do have one that you don't know if it's self primary or not, hook it up, turn it on and the water gets there, you're good to go. But everything we give you guys on our website are all self-priming, just because it's so much easier. This pump has three chambers in it, so it's gonna reduce the amount of cycling but, in my opinion, we replaced this one when, with the one that was in here before, and this one is so much quieter. Like it doesn't cycle as much, but even when it is cycling, I really have to listen and try to hear it. So if you're wanting a really quiet pump, the SEAFLO one is almost completely silent and it's not gonna wake up for kids at night. Literally, it's so much quieter than just the flow of water that's going. And even if we turned off real quick, it'll run for a tiny bit. Now it's done. So literally, I had to feel it just to make sure that it was off. This is extremely quiet. And that, I like that. In my opinion, I think that the SEAFLO three gallon per minute, 45 psi is perfect for this camper. We have a shower and two faucets. We don't get any pulsing or anything like that. The shower pressure is good to go and it's quiet. I really liked that. And with this one, we have this one on there yesterday. It's a HydroMax. So this one is 55 psi, but it's a little bit louder. Honestly, it's not that much of a difference. Just the jump from 40 to 45 was enough. If you want more pressure, you can go for it, but it is a little bit louder, but in my opinion, I really like this one. It gets the job done. I have the pressure I want. There's no pulsing and it's quiet. So you do have options, but if you want my opinion, grab the SEAFLO three gallon, 45 psi. If you're performing maintenance, maybe just fixing something or just replacing your whole entire water pump, you've got to find out where it is. What I found the best to do is run it and see if you can hear it. We wanna put it a little bit farther away from the kitchen sink, 'cause typically it's around that area. So I'm gonna go in the bathroom here, turn on the pump and then run a little bit of water to see. I don't know if you can hear that, but that is what we really wanna kind of figure out exactly where it's at. They're typically near the kitchen. So kind of start there and you really got to use your ears to really find out where it's at. Usually it's behind a weird, hidden little panel. So we we're following the sound. We thought it was right next to the hot water heater, but it wasn't. It was actually over here and again, right next to the sink. So step one, find the pump, check. Before we do the swap, we wanna see what we're working with before, just to give us a base, to see if we're increasing our pressure. So let me turn this pump on. Let's turn this on. A decent amount of pressure. It almost goes up to the vent, not really, but not the best. Now for the sinks, the sinks actually have a decent amount of pressure, definitely enough to to clean some dishes. But the problem really is in the shower. That's what we're really trying to solve here. And that's why we're really replacing this pump. Before we do anything to the pump, we need to cut power. You can do it at a bunch of different ways. You can just go and pull a fuse. You can maybe just flip a little breaker on the inside, but what I'm doing, just to make sure everything doesn't have power, just in case, is we do have a battery shut off, so I'm just gonna turn that off, just to make sure that there's no power running that pump, whatsoever. To get all of the water out of the lines, if you have a valve like this, it's gonna be very, very easy. So all we gotta do with this valve is just kinda turn like this. It's gonna cut off the water source and then it's gonna bring it down to this too. It's just gonna suck in air. But if you don't have one in here, we do have one. So if you are replacing your pump, I highly suggest doing it. But if you don't have one on your pump and you need to take it out right now, just make sure to have a couple of little bit of towels and stuff. You have a little bit of water trying to come back, but we don't have to worry about that. So now that I turn that valve, it's gonna be taking an air from this tube. So now, all we really need to do is turn on the faucet and let it run. And it's gonna take a little bit of time. Well, you see some air pockets start to come through, pressure is gonna go down. It's gonna start spitting for awhile. I was gonna let this run for a little bit to get all that air out and then a little bit, yeah, see all that air. So it's gonna do this for a little bit. Just let it run until basically nothing comes out but air. It's a little tough to see in there. It's kind of a small space, so hopefully we get it for you, but I'm gonna go ahead and just take this thing off the ground. There's this four different screws. This one's gonna be a little bit easier for me to access all the different hoses and such. So it is extremely tight in here, but basically what I'm gonna do over here is little white, little 90 degree. There's just a little nut on there. I'm just gonna loosen that and that'll come off. And then on this side, I'm gonna loosen this, just because our new pump does come with this piece. So I'm gonna disconnect this and that side. And then of course cut the wires, but super, super tight. So I need to get two hands in there and do it. And once all our connections are cut and all the wires are disconnected, this whole thing should come right out. We wanna take these caps off the end. You can throw those away. We don't need them. And all you gotta do is just kinda twist them, counter clockwise, if they got threads on the inside to take them off. So throw those away. We do get these here, which we're not gonna use these today, 'cause this isn't how ours is set up. But if you did have hoses going in, on the sides and you're not gonna use the threaded portion, you can use these but I'm not going to. See what you can do what you want with those. And then of any type of water fitting, we do wanna have some thread tape, so just grab that when you grab your pump and take into account where you're gonna be twisting it. So we're gonna be going tight, like this. So I want the end to be on this side, just so when I'm threading it on and it's not gonna get all bound up. Really just need to go around a couple different times, try to keep it as tight as you can, whenever you're doing it. It's a little tricky but once you get around that first little round around then it's kind of a little bit easier. Star early gonna pull out so. Just do that on both sides. And what I like to do is once I'm done, I just like to kind of push down on it, just to kind of see those threads, just so it doesn't get all bound up when I screw it in. So I wanna do that on the other side. Now we wanna figure out where the water's going. So there are gonna be some arrows. So water is gonna go in here and out over here. We wanna have this little pre-filter before it enters the pump. So right here, on the inlet. So we'd go ahead and take that. I'm putting it on here just cause it's really tight down there. And I don't really feel like doing it when I'm down there. So let's go ahead and rotate this around. It's where you want it. And we're good to go. Hardware is not included with the kit, but of course we're replacing a pump. So just take the hardware from the old pump and use that. Also, one thing I noticed is that the footprint of all these pumps are the same. So if you are replacing, most likely it's gonna have the same exact footprint as you can see right there. So you can reuse those holes. And of course, even if you go with a larger gallon per minute pump, it's still gonna fit. 'Cause the mounting is gonna be the same, even if the pumps a little bit bigger. So you don't have to worry about it not fitting. Another thing that we're doing, which I don't recommend using is just these twists nuts. We just have a lot of different water pumps, we're putting in here or just testing out to see which one's gonna be the best for this customer. But what you wanna do is take some heat shrink butt connectors, since you're gonna be installing it permanently, We have those here at etrailer, grab those. It gets the best connection you can get. It's really tightened here. So I'm just gonna put it up, connect everything up and call it a day. So I'm just gonna do that off camera just because it's gonna be impossible for me to do it. And you guys see it too. But it's pretty straightforward. Put it in there, screw it down and then put the lines back on exactly how we took it off, just in reverse order. And we are done. Everything's mounted down. We have everything connected. All I need to do is just turn this like that to allow the water to go through. Now that we are good, we can go ahead and put the switch and give everything power again. Now the power's on. We have one more switch right here to turn on the pump and you can hear it running. So now we just wanna check for leaks, right So let's look down there and make sure all the connections we just made are good because everything else was fine. We didn't have a leak before. So as this is pumping up, sit there and wait for a little bit. And then what we wanna do since there's no leaks, you can go up here. We wanna get all the air out of the line so, little bit of air, a little bit of sputter. And then this right here is normal just because it's only a three gallons per minute pump and the pump is self-priming. So we don't have to really worry about that. So now let's go to the back and make sure everything is good. No water in these lines. I actually already had this open, so that one's good. And then with this, we are clear of air. So we have no leaks. It works and all the air is out of the line. So we're basically ready to put this panel back up and that'll do it for a look at the SEAFLO RV water pump..


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Info for this part was:

Employee Chris R
Video Edited:
Chris R
Employee Michael B
Installed by:
Michael B
Employee Adam E
Video by:
Adam E

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