Current-USA Eflux DC Flow Pump Comparison + Installation Tips


Hi everyone I’m Ike from Current USA and today we’re going to compare our 3 Eflux DC flow pumps and give you some helpful installation tips. DC return pumps are still a new technology to many hobbyists and we often get questions on how to best size one for an aquarium or use one in an installation, so hopefully we can answer some of those questions for you. And if you already have a DC return pump make sure to watch the end of the video we have a few installation tips that are critical and hopefully you’ve followed them Our Eflux water flow pumps provide hobbyists a super safe energy efficient controllable solution for pumping water from any sump or wet/dry filter back up into their aquarium. They can be used both submersibly or externally, and they run on super safe 24 volt low voltage vs. high voltage which many pumps use. One of the best features of our Eflux DC flow pumps is their controllability. Each pump includes a controller manifold with a dial on it that allows you to adjust the water flow from 20 percent all the way up to 100 percent. We set the twenty percent minimum to ensure that when you’re in feed mode that the water does not back flow and it’s just a safety feature. When you adjust the water flow on your DC return pump, you’re also adjusting the power consumption, so you don’t need to use ball valves to restrict water flow, you can just dial it down and as you dial it down, the number of watts you’re consuming also drops. You’ll save money in electrical consumption, which is something you can’t do with AC style return pumps. When connected to a loop network there’s also an indicator LED for when the pump is in feed mode. There’s also an indicator LED showing a specific size DC pump connected to it and 4 micro USB ports at the bottom of the controller allow you to connect your hub to other Eflux DC flow pumps, to our wave pumps, or to your lighting system hub when connected together these create an entire loop network. So what size DC flow pump is best for your aquarium? We normally recommend taking the entire system volume which is the volume of your aquarium plus the volume of your sump and multiplying it times five this will ensure you get a five time turnover rate through your filter per hour. Once you have that number simply look at our flow chart and reference the green line and look at the flow rate below to find which pump works best for your system. So now that you know which pump you need let’s take a look at the three pump models and compare them. Our smallest DC return pump produces a maximum flow of 1,050 gallons per hour and consumes a maximum of only 30 watts it’s great for tanks up to 75 gallons in size it also includes a strainer that conveniently slides over the inlet fitting this strainer provides protection from debris and ensures it doesn’t clog the pump. Our 2 larger DC return pumps are very similar. The medium-sized pump has a flow rate of 1,900 gallons per hour and consumes only 50 watts and it’s great for tanks up to 150 gallons. The larger pump has a maximum flow rate of 3,100 gallons per hour and consumes only 80 watts and it’s great for tanks up to 300 gallons. A pump strainer can also be threaded onto the inlet for submersible applications. No matter what type of aquarium return pump you’re using, here’s a few tips to make sure you’ve installed it correctly and ensure it’s running at its maximum efficiency. Always remember the rule large in, small out. Pumps are designed to do just that, pump water. Most pumps are not designed to suck water so you should always make sure you’re using a larger pipe diameter on the inlet and flood the intake of the pump then use a smaller diameter pipe on the outlet and push water out of the pump. When using your DC flow pump in submersible applications make sure you don’t get your inlet too close to a sump wall while not using a strainer, otherwise the pump can get stuck to the side wall. Lastly make sure to clean your DC flow pump once every 8 to 12 months the higher alkalinity levels found in reef aquariums can build up some serious coralline algae on both the pump impeller and on the internal motor cavity. This will not only slow your pump down, it can sometimes even clog the pump altogether. If you have any questions on our Eflux DC flow pumps, please feel free to ask them in the comment section below and for additional aquarium keeping tips, please subscribe to our YouTube channel.

17 thoughts on “Current-USA Eflux DC Flow Pump Comparison + Installation Tips

  1. I dont know about any blue tooth ap because I use the pump as a stand alone and all I can say is this is an outstanding pump for the money. Your not gonna find a better deal or quality when purchasing a return pump than this one.

  2. Moving my 125 this weekend and I'm adding this pump to my setup. Wish me luck…

  3. I have a 32bio cube i was looking at updating my lights with yours my tank is 21 inches deep don't know if i am going to get enough per to grow my coral if i can i think i would change it all over pump power heads and lights to the loop can't find any information on per at 21 inches deep on your lights

  4. These pumps are no joke. Super quiet and they pump a massive amount of water. They are pricey but the flexibility coupled with the watts/gph is worth it IMHO. American ingenuity and engineering at it's finest with this product.

  5. WHAT IS THE THREAD SIDE OF THE EXTERNAL PORT ON TOP AS TO HARD LINE TO A UNION excellent pumps . I have two in use of the 1900 connected to hose in my sump. AM purchasing the dual loop lighting kit. For my new tank under construction and need to know the thread like 1-1/2" tks

  6. Hello just wanted to know if you can turn this pump 100% off when you do water changes

  7. I am setting up a 150 gallon fresh water aquarium. With a 55 gallon sump. (i know over kill a 40 is too wide to fit in the base and the 30s are too small) I have a head high of about 7 feet would this pump work well?

  8. I have had this pump over two years on my reef and it is still humming along as the day I bought it extremely quiet and reliable

  9. When doing a water change I turn off the power to the pump. When I turn the power back on the pump comes on at a much higher rate than what I had it set at. This ends up sucking my sump water level way down and sucking in air if I’m not right there to adjust the controller. Another problem is if the power Goes out in the house and then comes back on, the pump turns back on at a much higher rate which then ends up sucking the water level down way too quickly again. Is there a problem with my pump or am I doing something wrong?

  10. I recently purchased your 1900gph DC pump and looking to install it in my system soon. I noticed the chords connecting to the control module have these loose blue o-rings (shown in your video at 1:41) but cannot seem to determine how they are intended to be used. Perhaps I'm over looking it but don't see a reference to them in the manual either. My best assumption at this point is once the plugs are connected I simply roll them down over the plugs adjacent to the control module body to help prevent moisture and salt creep intrusion but it doesn't really seem like a good fit for that. Please help.

  11. I have the 1900 gph pump can I hook up 2 of your wave pumps to the hub or do I have to purchase Separately

  12. LOL you can SCR Controllers to control the power consumption on AC pumps and regulate flow without power wastage. Don't lie @1:35

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