Originally Posted by Legion1183
Does gravity have an effect in a closed loop though?
The gravity has got the effect on everything, we like it or not
Running the pump above the res will affect the life span of the pump:
1. When you fill the loop with the coolant and start bleeding it the pump will run dry for much longer than if the res was above.
2. Every time you switch your PC you will put an extra strain on the pump as it will have suck the water up against the gravity.
All that may reduce the time you enjoy using your pump even by up to 30%.
Simple answer is if you have got room put it below the res!
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