I've finally got my setup installed (bare without any of my goods in the case) it's a naked Lian-Li PC-65 with all the tubing connected. I do have a reservior, and would like to begin the leak test tommorow. The only question I do have is... if I need to drain the distilled water out, how will I do it? Also I have MCT-5 but was wondering if it's a concentrate (do i need to add distilled water) or pre-mixed?