Here are the parts I currently have: Water blocks: EK FC780 GTX Jetstream Plexi/Nickel Nvidia GPU Waterblock EK FC780 GTX Ti Plexi/Nickel Nvidia GPU Waterblock EK Supremacy Plexi/Nickel Gold CSQ CPU Waterblock Pump: EK Laing D5 Vario 12V DC Liquid Cooling Pump Reserevoir: EK Bay Spin CSQ Plexi Reservoir Radiator: XSPC AX360 Triple Fan 360mm Radiator Black My tubing is some XSPC green, 13MM 1/2" ID, 19MM 3/4" ID tubing and I'm going to be using distilled water. I am yet to purchase any compression fittings or adapters as I am yet to finalize the loop. My 4930k is overclocked at 4.3GHz, 1.30v LLC LvL2, 24 hours stable. I also have my 780Ti's overclocked aswell. My question was whether or not It would be beneficial or even if I need a second Radiator? I potentially have the ability to add a second 240mm radiator .