Which would be the best watercooling kit out of these two?



I'm leaning more towards EKWB anyways, I think they also include the coolant and XSPC does not (not sure).

Also, how/where would I add a Ball Valve for draining the loop? Or is this pointless?
 


I usually just drain the system from the lowest connection, I almost never use a proper drain valve.
 
Think I'll be going for EK then.

So for draining I'd just make sure I have a bowl or something to catch the coolant and place it under the lowest point of the loop?

How exactly would I clean the loop though?
 


Check the EKWB website. They have all the info such as cleaning, algae, opening and resealing the blocks, draining, etc.... They are good on providing info and the kit will come with good instructions. EKWB is the king of watercooling, no worries there.