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General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums.

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Unread 10-06-2004, 09:28 AM   #51
JamesAvery22
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Quote:
Originally Posted by killernoodle
mag 3s are cheap and very powerful, they will perform as well as a mcp600 or d4 in a watercooling loop. Sometimes they do have problems with starting leaks around the O-Rings, but if you put a little vaseline on the o ring or some RTV to seal it better, you will be fine. I have my mag 3 running in my computer basically non stop for 2 years now.
Good price range too. Think Ive found a good compromise between price,noise,performance. Screw size I'll make it fit. If it doesnt fit the first time push harder.
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Unread 10-06-2004, 10:27 AM   #52
JamesAvery22
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Oh yeah...
Max I'll have a mcw6000 and a MCW20 and some really low resistance radiators. Is it ok if I got the Mag2 instead of the Mag3? Some guy at the OCer forums said the Mag3 actually collapsed his 3/8" ID tygon (not really sure why that would happen since its a closed system ). But anyways would I get any noticable temp differences between the two? Size is the same and price is 10$ dif so I dont care. Just was looking at the Mag2 because its less power plus Im ASSumin it would be quieter...
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Unread 10-06-2004, 10:32 AM   #53
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collapse his tubing? he's probably bsing around cos that would be result of a leak
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Unread 10-06-2004, 11:01 AM   #54
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nope
you guys don't understand the pressures in a closed loop
the first 1/2 is positive, the second negative
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Unread 10-06-2004, 11:10 AM   #55
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Quote:
Originally Posted by unregistered
nope
you guys don't understand the pressures in a closed loop
the first 1/2 is positive, the second negative

so if I do use thin walled 3/8" ID tubing am I in danger of having the tubing by the inlet collapse when using a high head pump like the mag3?
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Unread 10-06-2004, 11:12 AM   #56
Chew_Toy
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My guess is he used thin wall tygon because its quite a bit cheaper. I cant see any of these pumps colapsing my 1/2 id 3/4 od tygon.
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Unread 10-06-2004, 11:18 AM   #57
BillA
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all about wall thickness
coolsleeves ?
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Unread 10-06-2004, 11:33 AM   #58
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Quote:
Originally Posted by unregistered
all about wall thickness
coolsleeves ?
Or a bunch of zip ties - my ghetto version of coolsleeves.
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Unread 10-06-2004, 11:38 AM   #59
JamesAvery22
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Quote:
Originally Posted by unregistered
all about wall thickness
coolsleeves ?

Since you said the first half has positive pressure and the second half has negative pressure Im guessing the highest postive pressure is right at the the outlet of the pump and highest negative is at the intlet. I am also guessing the pressure gradually changes. So it slowely goes from full positive, to less positive, to 0 to less negative, to full negative in the loop.

I was already planning on using 1/2" ID 3/4" od or greater tubing on the inlet mostly because 3/8" just wouldnt fit..

how extreme is the change in negative pressure from the very tip of the inlet of the pump to 12" away of straight tubing?
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Unread 10-06-2004, 01:41 PM   #60
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No one here talked about the Eheim 1250, i consider it a valuable silent pump, althought rather expensive.
I would guess the negative pressure would be equal trought all the first tubing on the inlet? (Assuming the pressure drop on the tubing is ignorable?)
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Unread 10-06-2004, 01:47 PM   #61
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Quote:
Originally Posted by satanicoo
No one here talked about the Eheim 1250, i consider it a valuable silent pump, althought rather expensive.
I would guess the negative pressure would be equal trought all the first tubing on the inlet? (Assuming the pressure drop on the tubing is ignorable?)

Eh, same price at petsmart, physically bigger, and less head. Id consider it if it was substantially quieter.
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Unread 10-06-2004, 01:52 PM   #62
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I have never tried a mag 3, so i dont know about quietness.
But Eheim is know for being a quality pump, quite an important feature in PC cooling.

Dunno. I'll wait for replies.
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Unread 10-06-2004, 01:53 PM   #63
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Quote:
Originally Posted by satanicoo
I have never tried a mag 3, so i dont know about quietness.
But Eheim is know for being a quality pump, quite an important feature in PC cooling.

Dunno. I'll wait for replies.
edit, nm its not the same price, I was looking at the 1046 =( its $71.99 compared to 44.99
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Unread 10-06-2004, 02:01 PM   #64
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AAH ok .
I always hearded well about the L30 also, cheap and powerfull, but against a mag 3? Dont know.
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Unread 10-06-2004, 02:04 PM   #65
JamesAvery22
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Quote:
Originally Posted by satanicoo
AAH ok .
I always hearded well about the L30 also, cheap and powerfull, but against a mag 3? Dont know.
L30 has almost the same head as the Mag2 (6.5 - 6ft). the Mag3 has 10 Think I'll just get the Mag3 and reseal the o-ring and hope it lasts as long as some other's have.
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Unread 10-06-2004, 03:55 PM   #66
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It's the exact opposite of the outlet.

Quote:
Originally Posted by JamesAvery22
Since you said the first half has positive pressure and the second half has negative pressure Im guessing the highest postive pressure is right at the the outlet of the pump and highest negative is at the intlet. I am also guessing the pressure gradually changes. So it slowely goes from full positive, to less positive, to 0 to less negative, to full negative in the loop.

I was already planning on using 1/2" ID 3/4" od or greater tubing on the inlet mostly because 3/8" just wouldnt fit..

how extreme is the change in negative pressure from the very tip of the inlet of the pump to 12" away of straight tubing?
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