People are so eager for water cooling they don't realize that liquid cooling is just as good and cheaper.
Water cooling requires maintenance to keep it running, you have to change the water every now and again (it varies depending on the quality of the liquid used).
Also to make sure the parts and bolts don't rust, it can happen.
One bad thing, if an attached part comes loose, you can potentially fry your motherboard etc.
If you wish to continue to do watercooling, get a professional to do it for you, don't watch a video or read an article then decide to do it yourself... most times out of 10 people will screw it up.
Like the guy in this video who portrayed himself as a "PC Expert" --- Link
If you search youtube etc you will see all these "experts" at work and how badly they do it.