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What kind of pump these days?

post #1 of 12
Thread Starter 
My pump apparently went bad, what is the popular, quiet, reliable pump these days?

I currently have this:
Koolance Pump, PMP-450
Edited by dseg - 7/16/16 at 5:15pm
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Baby Blue
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post #2 of 12
Quote:
Originally Posted by dseg View Post

My pump apparently went bad, what is the popular, quiet, reliable pump these days?

I currently have this:
Koolance Pump, PMP-450

If you have a highly restrictive loop, or just a big loop, D5 is the general recommendation, mainly due to its high flow and good reliability.
If it's more of a compact loop the DDC is usually the first choice.

EDIT: This is not based on hands on experience with these pumps, but based on previous recommendations done by forum members and their stories on them.
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post #3 of 12
Thread Starter 
Quote:
Originally Posted by TTheuns View Post

If you have a highly restrictive loop, or just a big loop, D5 is the general recommendation, mainly due to its high flow and good reliability.
If it's more of a compact loop the DDC is usually the first choice.

Thanks - do brands matter with these?
I am looking at this:
https://www.amazon.com/Swiftech-MCP655TM-Laing-Vario-controller/dp/B001G6S1JY/ref=sr_1_1?ie=UTF8&qid=1468714387&sr=8-1&keywords=pump+d5
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Baby Blue
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post #4 of 12
Quote:

I was going to say EKs D5 is what most buy, since that's where the majority also get their blocks etc. But seeing the link is also a rebranded Laing, they are the exact same.

Now if only the true experts could chime in.
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post #5 of 12
Any variation of the Laing D5 will be great. I have two of them in series and they are very quiet and haven't hinted at a problem yet.
Most people will recommend the D5, whether it s from EK or from someone else.
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post #6 of 12
Thread Starter 
Thanks guys - Well I can get either Alphacool or XSPC...
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Baby Blue
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Black Ice SR1 480 Rad 2x Black Ice SR1 360 Rad Black Ice SR1 240 2x D5 Vario Pump - Koolance with Bitspower Blue... 
CoolingCoolingOSMonitor
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post #7 of 12
I flip water cooling parts on eBay on a pretty regular basis and test at least a couple pumps a week. From what I've seen pretty much every variation on the D5 or MCP655 are the same thing. They may have slightly different controllers but performance is pretty much identical. Some models are speed controlled through a knob on the bottom of the motor, some use a PWM header, and some just run on straight 12V all the time with no speed control. Personally I prefer the ones with a physical knob on the motor. You'll want the highest pump speed for priming your loop but once the water has made it all the way around you can usually get away with turning it down to reduce sound and power draw a little bit.

DDC pumps are fine as well but they do tend to be just a little weaker than D5's and they are a little trickier to cool because they don't soak as much of their heat in to the water.
 
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post #8 of 12
What are the differences between the different version of ddc pumps?
post #9 of 12
Today there are pretty much only 2 pumps worth mentioning. D5 and DDC. D5 like guys said before is preferred choice in bigger loops. DDC is more suited for SFF builds. Still D5 is not that great on head pressure in complicated loops. While DDC is not that great with flow rate. At some point - too many blocks - you need second pump.

Me personally using only D5 no matter what. It's biggest advantage is that coolant itself is cooling the pump. DDC gets really hot and you need to cool the pump on its own. While most say D5 is a D5 no matter what re-brand I disagree with that. I found that D5s from Alphacool for example are much, much quieter than from EK for example. I don't know who is OEM for AC but for EK it's Xylem Hungary. All AC D5s I have I can run at full blast with barely any noise with my ear next to pump housing. EK/Xylem/ on the other hand anything above 2 and whining becomes highly annoying. I had to dump one pump totally because it worked reasonably quietly only between 3 and 4 settings which was simply stupid. Perhaps I got bad noisy batch from EK but that's hardy possible to get 100% bad batch every time, right??? tongue.gif
post #10 of 12
Aquastream XT pump very reliable and strong pump ( approx a D5 at setting 4) and so silent in its operation. I have 2 running of which one is 7 years old the impeller is pretty much the only moving part. And can be easily swapped if need be. The pump has no issue with multiple block setup.

The D5 is another great pump have one with an ek top plus res brand new which il use in my next upgrade heard many good things about it. DDC no experience. As people say go with D5 or if you can a Aquastream XT.
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