how much pressure do you need to do pressure test on a cooling system
This is where the âpressureâ of our cooling system comes into play. When you increase the pressure on a liquid, you raise its boiling point. Our coolantâs boiling temperature of 223Â° F (106Â° C) is when it is under 1 psi, which is why most cooling systems are designed to operate at 15 or 18 psi.