Not sure exactly how to use this without breaking anything. I will be using pump reservoir combo(13295). I plan to use a generous amount of distill water to flush out the entire loop before filling it up with the ckc coolant. I willl plug up the inlet port on the 13295 with the end tube open and aim into a container. Now can i use the pumping gum ball by screwing it onto the fill port to clear any distilled water that remains in the loop? How do I actually use it? This will be a brand new loop. Thanks