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Various Watercooling Questions

post #1 of 9
Thread Starter 
So I am getting my water blocks for my GPU's today and I need to drain my loop. I installed a drain line, can I use the pump to just pump the water out of the drain line? How long could I run the pump dry for? Also will the pump that comes with the rasa 750 rx360 kit be enough for 2 rads, 2 gpu's and my cpu? Does the everything look right?(keep in mind I will be installing two GPU water blocks). I plan on Going: pump>Rad360>CPU>Rad120>GPU1>GPU2>T-Fitting Drain Line>Res
Sound Good?

Edited by ks1 - 10/19/11 at 1:13pm
post #2 of 9
The 750 pump should be enough to push it, but I would still recommend moving to a dedicated pump with a tad more 'oomph'. If you like the bay style pump, perhaps the XSPC dual bay with a 355 installed? I use a 655 for Res>360>360>GPU>CPU>Res and getting a tad over 1.2GPM. If you use Higher restriction blocks, the 750 will be brought to its knees.

If you are going to spend the money anyways, mind as well do it right?
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post #3 of 9
I would not let the pump run the water out ! This can hurt your pump if it gets to much air in loop and trys to pump it.
Yes the pump can push a cpu and two gpus. the rads dont cause any restriction to speak about
Loop order as long as its pump>res dont matter
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post #4 of 9
I recommend reading This guide for pump capabilities. The rasa 750 can probably just squeak by with your setup if your blocks aren't very restrictive, but you may find you need a better pump to handle it all. If you want to keep the bay reservoir there are several options for 1-2 integrated D5/655 pump(s), including one from XSPC.
post #5 of 9
Thread Starter 
If I switched my pump to a mcp35x I wouldn't be able to use my current resovoir correct? Also would that be the best pump to get, according to the guide that seems to have the most head pressure other than the Iwaki RD-30. Also whats the best way to drain my loop if I can't use the pump to push the water out? Will gravity be able to get most of it out? Also have I configure the drain line in the right place(right before res at the lowest place I could get it)? Thanks for your help guys, rep for everyone
post #6 of 9
Quote:
Originally Posted by ks1 View Post
If I switched my pump to a mcp35x I wouldn't be able to use my current resovoir correct? Also would that be the best pump to get, according to the guide that seems to have the most head pressure other than the Iwaki RD-30. Also whats the best way to drain my loop if I can't use the pump to push the water out? Will gravity be able to get most of it out? Also have I configure the drain line in the right place(right before res at the lowest place I could get it)? Thanks for your help guys, rep for everyone
You can still use the MCP35x with the bay res. It's basically an upgraded 355 with PWM and a factory performance top.
post #7 of 9
Thread Starter 
I just don's see how to remove the old pump from the res that came with the XSPC Rasa 750 RX360 kit
post #8 of 9
Quote:
Originally Posted by ks1 View Post
I just don's see how to remove the old pump from the res that came with the XSPC Rasa 750 RX360 kit

You would have to get another res designed for the new pump. Many of them come preassembled. This is a good example. I'm not sure the quality of that particular pump but you get the idea.

For draining, yes gravity will do most of the work. Keep paper towels on hand when you disconnect fittings as there will still be some drips.
post #9 of 9
Yea, sorry. I thought you were talking about a res that already had a 350/355 in it or could take one.
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