1| You just necro'd a near month old thread
2| OP hasn't decided on a CPU
3| The watercooling sticky is where you should borrow your advice's, not youtube
4| if OP has read the watercooling sticky, then he has determined the TDP(if he also has determined his CPU of choice) of his loop and the heat dissipation required. NOT determine how much your loop will cool via a price tag.