Saxon, I understand changing the pressure would not help. What I just tried to say was that you should never alter the design of a fire suppression system in any way without consulting the manufacturer first. Sorry if the answer was a little confusing.
By the way, there might be suitable...
Besides, I would not fiddle around with the pressure in a water mist system without consulting the manufacturer first. Increasing the system pressure most likely leads to a decrease in the water discharge (=protection) time offered by the system. If you have an approved water mist system which...