does anyone have any experience with the current eflux dc return pumps, im replacing my old overpowered iwaki 70, looking for a good reliable quiet pump, my sump is set up for internal or external pump, thanks
current eflux pumps?
- Thread starter woodguy
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I've had one running for a year, it's an amazing pump so far. There customer service is great too. I pulled mine apart for its first cleaning and noticed a very small amount of rust color on the screw threads so my wife emailed current directly. They responded within 24 hours and I wanted was a new set of screws. There response was an apology for a defective unit and were sending me a new unit asap. They asked that I return the old one once my new pump arrived. That's customer service. The pump moves water really well and I like the controller. You won't regret it. I have the 1900 gph model.
Sierra_Bravo
Valuable Member
I've had the same positive experience as the above commenters.
The gph for an Iwaki and an Eflux are 2 differentl things, once any head pressure is applied. Could be true of DC pumps in general. The Iwaki will maintain pressure pretty well at higher head pressure, but in MHO the eflux won’t. If you are switching from an Iwaki 70, I would recommend the largest Eflux, that way you won’t be disappointed in the flow and can always turn it down.
Have you run an eflux? It keeps head pressure pretty steady at 4'. Depending if the OP had the iwaki running full blast and his head height is what can determine the size. I agree on going with the biggest though, the iwaki is a beast but I think the eflux is very capable. I still have the iwaki in storage.
Greybeard
2500 Club Member
I got nothing against Iwaki pumps... My cube was running a small Iwaki Japanese pump, forget the model, ~700gph or so. Rock solid, reliable pumps. I've used them in the past, as well.
Two things:
1) Submersible pumps are a bit easier to plumb, and if you plumb them right, a bit easier to maintain. In my current setup, I unscrew a single union, unplug one electrical connection, and the pump is free for cleaning. No mess, no fuss. My last system, I had true union ball valves above and below the Iwaki pump. You still couldn't pull the pump without spilling a cup or two of water. Add in the screws and rubber grommets holding the pump in place, it was a fairly major process to get the pump out and clean it. Not that you have to all that often, but still.
2) Noise. There's a hum to external Iwaki pumps that you just can't overcome. My Eflux? Other than water movement, I can't tell that it's running. In many systems, this just isn't that important... in others, it is.
Two things:
1) Submersible pumps are a bit easier to plumb, and if you plumb them right, a bit easier to maintain. In my current setup, I unscrew a single union, unplug one electrical connection, and the pump is free for cleaning. No mess, no fuss. My last system, I had true union ball valves above and below the Iwaki pump. You still couldn't pull the pump without spilling a cup or two of water. Add in the screws and rubber grommets holding the pump in place, it was a fairly major process to get the pump out and clean it. Not that you have to all that often, but still.
2) Noise. There's a hum to external Iwaki pumps that you just can't overcome. My Eflux? Other than water movement, I can't tell that it's running. In many systems, this just isn't that important... in others, it is.
I have two of the eflux models on my set up. I have the largest one (3170 gph) running as my return pump. The return pump is running as a submersible with roughly about 7 feet of overhead and the pump still puts out plenty of flow. I have the middle pump (1900 gph) running as my close loop running inline/external. Both have been great. Dead quite! I too had to contact customer support and they were very helpful. Great company to deal with.
Forsaken77
Valuable Member
Don't know if you're aware, but the feed mode button does not shut off the pump, it reduces it to 10% or something similar. Another good alternative for dc pumps are the Reef Octopus VarioS-4, 6 or 8 pumps. They come with a slew of adapters for barbs & unions, has float valve and bracket, intake screen, and are Apex compatible. Super silent to. Work better in sump.
I usually don't like Reef Octopus stuff, but those pumps are good, and a great price with all of the included plumbing parts that you don't need to buy separately.
I know you were asking about the eFlux, but wanted to give you a good alternative.
