Emptying watercooling loop safely

MagR

Distinguished
Aug 31, 2009
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Hi

I’m thinking a buying a new reservoir and need help understanding the physics behind filling and emptying the loop. At present I have a bay reservoir at the top of the case and the pump on the floor. It fills and empties no problem.

To save space I’m looking at an XSPC Acrylic reservoir for D5. This attaches directly to the pump so both will now be at the bottom of the case. My worry is if I take the cap off the reservoir and disconnect a hose for emptying, the water will gush out of the top of the reservoir – disaster.

My radiator is external so I can always arrange to have this at the lowest point of the loop when emptying or filling simply by raising the case up temporarily. The radiator has a convenient drain port. If I use the drain port to empty with the radiator below the reservoir will the water definitely drain from the radiator not the reservoir?

If I remove the reservoir cap for filling/topping up I assume this won’t cause any problems even if the reservoir is the lowest point in the loop as I will not have an open connection elsewhere?

Your help/experience would be useful before I make an expensive mistake.

Regards

Mag
 
Solution
The idea is to place a drain line in when you reconfigure your loop. If you have enough ports on your reservoir usually one or more on top (fill) and 2 on bottom. You can connect on of these to the bottom:

Bitspower Matte Black Quick-Disconnected Female w/ G1/4 Thread (BP-MBQDFG14)
http://www.frozencpu.com/products/17965/ex-tub-1635/Bitspower_Matte_Black_Quick-Disconnected_Female_w_G14_Thread_BP-MBQDFG14.html#blank

for each loop

Then get one of these and a 3' length of tubing and connect when ya wanna drain system

Bitspower Matte Black Quick-Disconnected Male w/ Inner G1/4 (BP-MBQDMIG14)
http://www.frozencpu.com/products/17966/ex-tub-1636/Bitspower_Matte_Black_Quick-Disconnected_Male_w_Inner_G14_BP-MBQDMIG14.html

The idea is to place a drain line in when you reconfigure your loop. If you have enough ports on your reservoir usually one or more on top (fill) and 2 on bottom. You can connect on of these to the bottom:

Bitspower Matte Black Quick-Disconnected Female w/ G1/4 Thread (BP-MBQDFG14)
http://www.frozencpu.com/products/17965/ex-tub-1635/Bitspower_Matte_Black_Quick-Disconnected_Female_w_G14_Thread_BP-MBQDFG14.html#blank

for each loop

Then get one of these and a 3' length of tubing and connect when ya wanna drain system

Bitspower Matte Black Quick-Disconnected Male w/ Inner G1/4 (BP-MBQDMIG14)
http://www.frozencpu.com/products/17966/ex-tub-1636/Bitspower_Matte_Black_Quick-Disconnected_Male_w_Inner_G14_BP-MBQDMIG14.html

 
Solution

rubix_1011

Contributing Writer
Moderator
You could also go the cheap route of adding a T-line to the lowest part of your loop using one of these ~$2 parts:

F-B12-T-BN.jpg

http://www.performance-pcs.com/cata...oduct_info&cPath=59_346_343&products_id=24447

These are actually pricey compared to what you can find on other sites or at your local hardware store in the plumbing section. Just need to know the correct ID tubing to match up with, and run an extra piece of tubing out the 'Tee' and cap it. I've seen some PVC 'plugs' being sold as well for around $2 per.