Office production may not allow water as water is conductive, also when something changed, you will have to buy waterblock needed, that is repeatable. If you care this, I suggest you to use mineral oil cooling system by puget if you cannot afford Novec solution. same effects but safer.
P.S I used to discuss with 3M. Novec solution is close to oil cooling, acting different as when you move your board out of the box, the board will get dry later on which is pretty fast. Suggest to contact with 3M for a demonstration if interested.
This is my personal office that i rent, i can do whatever i want. What is 3M? Can you explain please. This oil thingie looks very interesting has anyone actually tried it for mining?