Watercooling How to flush/clean a watercooling loop

Hi all, need to clean a loop out and wondering what the best way to do it.

Can I just drain the loop and run some sort of cleaner or I heard white vinegar is good to use? Obviously the machine wouldnt be on while flushing.

Otherwise should I clean the rads and waterblocks separately? Again what should I use to clean them with?

Oh and use hot or cold water when cleaning/flushing?

Thanks for any help

 

Here is a good guide, and I recommend that you subscribe to him as well as he does put out some awesome vids

 

+1 for the lazyman

 

Section 2 of this guide is dedicated to cleaning rads and blocks.

http://www.xtremesystems.org/forums/showthread.php?t=54331

It's basically the same as the video which is awesome, subscribed too as I've not seen his channel before