Let's talk DC pumps

solitude127

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#1
Besides lower watts, what's so great about DC pumps? What's the point of controlling the GPH for a return or for a skimmer?
 
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#2
For one thing i would say if you get a pump thats uses half the max gph you could used that same pump if you upgrade or go smaller also if you put higher gph you could target those spots that dont get flow.
 
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#3
The AC pumps controls the GPH by controlling the ouput, mechanic, while the DC pumps control the GPH by reducing the speed of the impellers. So the AC pumps consume more power, back flow effect, when adjusted to lower GPH while the DC pumps consume less power when adjusted to lower GPH. Logically speaking, the AC pumps use more power and therefore, have shorter lives if used at lower than max GPH. DC pumps on the other hand last longer and use less power it run at lower than max GPH

DC pump is a lot better IMO.


Would be nice to see the ratio of power consumption versus speed.
 
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#4
I agree with Vu that the AC pump use more power at low setting as I have confirm this with a killawatt meter and Tunze return pump but disagree with the shorter life on AC pumps as my Tunze gave me ZERO issue using at 2nd to the lowest setting for 2 years while some people post DC pumps craps out in a year. However I am running an Aqua Excel DC return now for over a year with no issue or cleaning and have my Tunze for back up. LOL

To answer your question Mike I went to DC return pump due to the warranty is handle in the US and you can control the flow going through your sump. Also when I added reactors I was able to keep the same flow in my sump. Same with the UV I run off the DC pump now. Oh and it is dead silent as my skimmer pump along with my MP40 are the only things I heard running. HTH
 
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#5
Hahahahahahahhahahhahaha! I guess I could be more clear, but who cares! I really want to see a DC pump made by tunze that has all the feature the Jebao DC pumps have. Some how these German dudes don't make such thing (or it could be due to my limited knowledge of not knowing where to look). Maybe due to cost.

but disagree with the shorter life on AC pumps as my Tunze gave me ZERO issue using at 2nd to the lowest setting for 2 years while some people post DC pumps craps out in a year. However I am running an Aqua Excel DC return now for over a year with no issue or cleaning and have my Tunze for back up. LOL
 
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#8
Love my bubble king red dragon 3 speedy dc pump! you cant even hear it running. Rather then fine tuning with the wedge pipe you can just increase the watts or lower them with the controller. Worth every penny in my book.
 

JOSE CASAS

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#10
Love my bubble king red dragon 3 speedy dc pump! you cant even hear it running. Rather then fine tuning with the wedge pipe you can just increase the watts or lower them with the controller. Worth every penny in my book.
I concur...
 
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#17
There has been some question as to the validity of the whole "saving energy" with these Chinese made DC pumps.
Many have reported that these pumps flow no where near their claimed gph. If this is true it explains the reduction in wattage. I am still hopeful that someone will do a scientific test to verify.

Also many people don't realize that when you add head pressure to an AC pump it will also drastically reduce the wattage that the pump pulls. This can be done by simply adding a valve to throttle the output.
 
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#18
Hmm, you lost me there. Wouldn't gravity work against the push of the pump, just like back flow, to cause the pump to consumes more power?????? Besides, adding head pressure is just like reducing the output ....!

Also many people don't realize that when you add head pressure to an AC pump it will also drastically reduce the wattage that the pump pulls. This can be done by simply adding a valve to throttle the output.
 
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#19
Here u be.....Oh jesse' friend?...Bro i dont care what he says about u....u seem a okay. lol
Jesse say all kind of crazy things that is not true... For example how he dunks and hit 3 pointers in basketball. LMAO I will just say "oh yeah cool" and go back to sleep Jesse it all a dream. [MENTION=2928]Tangwich[/MENTION]

Thanks, I forgot. I remember now I did not get this pump. It costs an arm and a leg.

Kenny, this pump will last longer than your 1073.040
No Thanks my Aqua Excel use less wattage and more GPH compare to my Tunze set at 2/3 of full power. Oh BTW I save $100 too
 

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