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Priming a pump? - Page 2

post #11 of 23
Thread Starter 
i'm a paranoid person smile.gif i'm scared there will be a gap of air between the water in the horizontal tube and the pump causing it to burn some bearings on the initial 2 seconds i turn it on
i think ill turn the pump sideways and try to get water in it as much as i can biggrin.gif
  
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post #12 of 23
Running a pump dry for 2 seconds will not harm the pump in any way. It would take hours to do any lasting damage.
Edited by Fleh - 4/7/13 at 11:05am
post #13 of 23
Ive always said to not run dry for over 2mins max, as this will make the pump heat up quite a bit.
     
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post #14 of 23
Thread Starter 
Quote:
Originally Posted by Fleh View Post

Running a pump dry for 2 seconds will not harm the pump in any way. It would take hours to do any lasting damage.
I've read on multiple threads running it dry for more than a few seconds might burn it out right at the start.
That's why i made this thread smile.gif im reading too much contradicting things!


I think i'll just do my best to tilt the pump untill i know water isnt just at the start of the bearing but possibly already in there (paranoia sucks)
  
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post #15 of 23
Wow there is some nonsense provided sometimes. These pumps are very sensitive to running dry, it takes a very short time to damage them.

In the manual they describe how they advise bleeding them, but its not really practical in a PC setting.
http://www.navitron.org.uk/download_images/download_111.pdf

The best advise is to only run the pump for a couple of seconds at a time while you are first bleeding, the pump moves air best just as it starts and stops anyway so there is no benefit to letting it run.

The arrangement you describe with the res on top is the least likely to give you any trouble so don't worry too much, a couple of seconds dry is fine, I have been doing it that way for ages without damage.
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post #16 of 23
Thread Starter 
Quote:
Originally Posted by Jakusonfire View Post

Wow there is some nonsense provided sometimes. These pumps are very sensitive to running dry, it takes a very short time to damage them.

In the manual they describe how they advise bleeding them, but its not really practical in a PC setting.
http://www.navitron.org.uk/download_images/download_111.pdf

The best advise is to only run the pump for a couple of seconds at a time while you are first bleeding, the pump moves air best just as it starts and stops anyway so there is no benefit to letting it run.

The arrangement you describe with the res on top is the least likely to give you any trouble so don't worry too much, a couple of seconds dry is fine, I have been doing it that way for ages without damage.
reading that manual made me scared

biggrin.gif seems ill have to open the pump a bit to dearreate it?
  
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post #17 of 23
Thread Starter 
Before Startup
-
Before Startup please check:
-
Flush the system to remove dirt
-
Make sure the system is filled and the air has been urged.
How to deaerate: The pump must be currentless. Remove the screw
ring from the pump a little, so that the air can leak out of the pump.
Attention: Avoid electric parts getting wet!
Then open the lead-in carefully, until some water runs out of the
pump.
-
Now fasten the screw ring
-
The pump can be switched on.
-
If you hear air noises initially, these should abate after a short while
-
Power cycling the pump several times accelerates the air removal
-
If the air noise does not disappear or at least decrease substantially,
repurge the system
-
Avoid dry run in any case! This will damage the pump




seems like a few seconds will damage the pump, this is why im scared, i guess ill have to read the manual that came with the pump, seems i cant just add water and "run it" at the end of the day its my job to research and make sure im not doing something wrong because of something i read outside the manual frown.gif


If anyone has owned a MCP655 and done this i would appreciate some guidance, i should be getting everything i need by wed-thur this week
  
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post #18 of 23
Do you have pictures of your actual setup with pump mounted?

Is your pump plugged? all other power cables unplugged? and do you jump the 24Pin atx with a clip or with a switch?

I have always tilt my case for the water to get to pump. Then start the pump, reservoir is emptying, then shut the pump. Fill reservoir with water, start pump then shut it when reservoir is empty, do this on and on until the loop is full of water then proceed to your 12-24 hours leak test.
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post #19 of 23
Thread Starter 
Quote:
Originally Posted by KaRLiToS View Post

Do you have pictures of your actual setup with pump mounted?

Is your pump plugged? all other power cables unplugged? and do you jump the 24Pin atx with a clip or with a switch?

I have always tilt my case for the water to get to pump. Then start the pump, reservoir is emptying, then shut the pump. Fill reservoir with water, start pump then shut it when reservoir is empty, do this on and on until the loop is full of water then proceed to your 12-24 hours leak test.

I do not yet, i have some pics of my PC in the build log / galleries but ultimately ill have the MCP655 mounted on a 120mm fan with a UN design bracket at the bottom of the case

i plan on tilting the pump horizontally so water can go down the ek 150 cylinder res and make more contact with the pump, aside from that im not sure if i should be following the manual instructions exactly or just getting water in the pump, and slowly pushing it through the system

pump will be at the bottom on top of fan with bracket near the PSU
all cables will be organized and loop will be completely redone, ill have a monsta 120mm in the bay drives area
edit
ill be using a seperate power supply to power the pump when i get everything in the computer i have the jumper cable you can plug onto the 24pin switch that came with the xspc kit
  
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post #20 of 23
What block you wanna clean? Nickel or Copper?
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Quad Damage
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CPUMotherboardGraphicsRAM
Intel i7 4930k @ 4.6Ghz Asus Rampage IV Extreme (Koolance Full WB) 2 x GTX 1080ti FE in SLI (EK WATERBLOCK) Corsair Dominator GT 2133 MHz (16GB) 
Hard DriveHard DriveHard DriveHard Drive
3 TB Seagate OCZ Vertex 4 256GB Crucial M4 128GB ADATA SX900 128GB 
CoolingCoolingCoolingCooling
RIVE Koolance Waterblock (VRM and PCH) Feser X-Changer 360 Feser X-Changer 240 Feser X-Changer 480 
CoolingCoolingCoolingOS
WaterCool MoRA3 Pro with Gentle Typhoon 3 x MCP 655 pumps (With EK top...all serial) 2 x EK FC 1080ti Blocks Windows 7 Ultimate x64 
MonitorMonitorKeyboardPower
Asus ROG Swift PG348Q (3440x1440 @100hz) CrossOver 27Q Led-P Logitech G15 EVGA SuperNova 1600T2 (Titanium) 
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