The multiple nozzle video portion above was filmed at the home of a fire chief in WA state. He and his crew helped me install my system.
Below are his comments on Twitter.
Here are 4 of the smaller nozzles that are 10 feet apart.
Each delivers 7 gallons per minute at 100 psi.
They create a wall of water that is 40 feet wide.
This could protect a house trailer or a small home.