Im planning to use the 3M fluid to cool my S9 antminers. Does anyone know If I need to remove the heatsinks from the S9 before I place it into the 3M fluid?
No you don't have to remove the heatsinks, but I would. Removing the heatsinks is tedious work. It's important to understand proper procedures to avoid damage to the ASICs .
The heatsinks increase the vacant area within the tank. All vacant area within the tank will need to be filled with the fluid. Once you see the price of the fluid you'll see why it's so important.
Do you know of a place to buy the fluid?