Hello, i have some questions about what would be the best placement orientation for radiator pump of Hybrid cooler. I have seen people installing the radiator vertically with the pump facing up or down. Since my case is tiny, i plan to install the radiator vertically with the pump facing sideways. The location will be slightly lower than the GPU.
 
My questions are: 
1. Is the pump still going to run optimally this way? 
2. I have heard that a certain radiator pump placement would cause the pump to work harder thus causing more noise. What would be the best optimal way to install the radiator so the pump would work less harder?

Thanks. Also is pull only configuration okay as well? Since i can only install the radiator in the front and have a giant Noctua 120mm push the air in from the front of the case.

You can use both (two) fans as push/pull also  --> not ideal using two different fans (CFM and pressure will be different most likely)
 
 

 
Picture source --> https://forums.evga.com/FindPost/2706928