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Installed my Iwaki 20RZ, pics

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Old 06-26-04, 03:20 PM Thread Starter   #1
pelikan
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Installed my Iwaki 20RZ, pics


Here it is:


I made a redwood box for it:


My radiator, for those who havn't seen it yet (50' of 3/4" copper, burried in wet ground):


My temps have dropped 3C using this pump. Before I was using a Groundfos circulation pump with similar head but much higher GPH (1250 GPH) and higher wattage (185W). My overclock didn't increase. I switched to the Iwaki to lower my electric bill.

Here's the rest of the pics. I got rid of condensation by sealing up my case so no air goes in or out and pumping the cold water through a heatercore and fan inside the case which cools the air while recirculating it.

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Last edited by pelikan; 06-26-04 at 06:59 PM.
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Old 06-26-04, 03:30 PM   #2
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Far and away one of the most ingenious (and quiet ) watercooling setups I've seen. Do have one question though: how's your flow with that much tubing? I know Iwakis have a lot of head, but that's really gotta be pushing that 20RZ
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Old 06-26-04, 04:32 PM   #3
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I think he had a eheim 1250 pushing through all of that if I'm not mistaken. If that pump worked than the 20RZ should be a worthy upgrade.

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Old 06-26-04, 05:21 PM   #4
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funny to see something I once had now installed, far far away.


glad to see its working for you, nice setup
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Old 06-26-04, 06:53 PM Thread Starter   #5
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Thanks for selling me the pump greenman100.
That's right, I used to have an eheim 1250 in there. The flow was, suprisingly, pretty good. Since the copper is 3/4", it is not very restrictive at all. I think I calculated a 2' pressure drop in the 50' of pipe.
Then I got a Grundfos pump for free. That thing has 25' of head and 1250 GPH. I was getting about 4 GPM with it. It worked great but it used 185W and I got sick of paying a higher power bill.
This Iwaki is perfect. I'm getting pretty close to the flow I got with the Grundfos, but with only 55W.

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Old 06-26-04, 06:58 PM   #6
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What makes the ground wet? How deep is the copper tubing burried?

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Old 06-26-04, 07:02 PM Thread Starter   #7
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Here's a pic from just before I trimmed the plastic and filled the dirt back in. It's burried about two feet deep. The plastic keeps water in.

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Old 06-26-04, 07:06 PM Thread Starter   #8
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The heatercore in this pic isn't cooling the water. Its job is to keep the case cool using the cold water from the burried radiator outside. I covered all the holes in the case with duct tape and put the psu outside the case. So with the side panel on the case is comletely sealed. I did this to stop the occasional condensation problems I was having. It's a cool, dry little micro-environment in there.

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Old 06-26-04, 08:39 PM   #9
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that's crazy! and by crazy i mean awesome!

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Old 06-27-04, 01:31 AM   #10
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It looks like you are cooling your intake air with that rad in the front, right? If so that is a great idea. Looks like you have a sweet setup.
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Old 06-27-04, 10:46 AM Thread Starter   #11
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Quote:
Originally Posted by InvisGreenMan
It looks like you are cooling your intake air with that rad in the front, right? If so that is a great idea. Looks like you have a sweet setup.
Actually there is no intake or exhaust. The air inside the case stays inside and is re-circulated through that rad. This way it stays cool and dry inside the case regardless of what's happening outside. I used to get condensation whenever I'd cook things like soup which add a lot of humidity to the air, but this solved the problem.

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