you mean in my DIY-build? if yes i can tell you, the AiO-watercooling solution i used came prefilled. they got an option to fill them up. therefore u can open the pump und a very good sealed up screw or you open a connector on the hose which will let out a mini drop of water and blocking the rest into the system. it seems very safe. also they are made for beeing used in PC's. i got lucky having some IT skills and worked with watercooling before so i know, as long as u didnt get something broke or u didnt mess up something with the hose there wont be a leak.
lets say worst case i got a short circuit because of a water leak, then i got the electrical fuse that protects everything.
ill sort it out
looking to add another 4 to this fixture
10th Year Anniversary
) I was introduced to a support group which evolved into a group on F.B.( mostly women I might add seems the males didn't get it ) . They are still arguing about the outcome of the U.S. presidental election 
fortunatly I can come here and don't have to listen or get involved in the discussions . Thank you AFN staff no exceptions right @Son of Hobbes . 
