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Unread 04-04-2006, 02:36 PM   #6
hanzzon
Cooling Neophyte
 
Join Date: Apr 2006
Location: Sweden
Posts: 10
Default Re: Cavitation or Airleak?

Quote:
Originally Posted by Long Haired Git
To be honest, I don't know how people resist fitting it all together outside the case and mucking about first, but as per the above, they do.
I wanted to assemble it in the case to get the correct length of hose between the components...

Quote:
Originally Posted by Long Haired Git
So, take it out of the case, and I'd disassemble it and do some simple flow rate testing (time how long it takes to fill a bucket). Start with the bare pump, then add the rads, then add each block in turn. The first component will always murder the flow rate so don't blame it.
Okay, time to fill a one litre bucket, pump located in a bathub, without reservoir:

Code:
Pump alone: 	   9Sec
Pump + Rad:	   12Sec
Pump + Rad + CPU:  24Sec
Pump + Rad + GFX:  35Sec
Pump + Rad + Chip: 37Sec
Everything:	   60Sec
When all block are connected the pump rattles/makes annoying noises, if it only runs the rad and one block alone it is fine, however two or three blocks in series is a no-go...

I tried with this pump too, it is by itself a very noisy pump, it has a flowrate that is leaps above that of the Eheim, it still took that pump 60 seconds to pump through all waterblocks and the rad... I guess it's flowrate is high but what I need is a pump that can push water with high pressure, what is it called, how many meters above the pump the pump can push the water...?

Quote:
Originally Posted by Long Haired Git
Flow above 3LPM is sufficient with modern blocks.
I guess with 1/3 of that I'm a bit low

Quote:
Originally Posted by Long Haired Git
That vid card looks like it will be to blame though. The fitting look industrial, so there may be scope to drill them out for less restriction?
My funny fittings on the GFX card did suprisingly little difference... And yes; they are industrial...

Quote:
Originally Posted by ProHandyman
What are the inside, and ouside diameters of your hose? What type of pipe thred is on the GPU Block... I know the perfect type of fitting, and available in Europe, but I need that info in order to help you.
Inside hose: 10mm Outside: 15mm
Thread on GPU block: 1/4"
Would appreciate it very much....

TerraMex; I think you are pretty much spot on
I guess I need a much stronger pump for my setup, can you give me any recommendations?
It would be cool if it would fit inside the AquaComputer fmj housing (the magnetic field from the Eheim pump made my CRT monitors screen move/shake...)
But criteria no1 for the pump is that it must be totally silent... I am going watercooling because I want to overclock but still be able to have a very quiet computer...
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