First Time with water cooling

I have a question I think you guys might be able to help me with. I'm trying water cooling for the first time, I recently just purchased an Thermaltake Armor + VH6000 with embedded LCS. The LCS that comes with it is the thermaltake bigwater 780e, . I heard you should always test your LCS outside before you install an hardware to make sure there is no leaks. This is where my question lies, how do I go about doing that? Should I remove the pre-installed LCS and fill it with fluid and turn it on? Should I connect all the tubing for the system and waterblock outside the case turin it on see what happens, and how do I prevent fluid from spilling out of the LCS when I finally turn it on to test it outside the case? Finally after testing the system do I than need to remove all the liquid and reinstall it? Also any tips on removing air bubbles from the system? First Time with water cooling
i donno if thermal already do the test with there LCS SYSTEM First Time with water cooling
Eh I am just new to water cooling so I'm really not sure on how to do some of these things.