If you look at your nozzle precipitation rate it is at 3.96 inches per hour, this is almost an impossibility with a residential system. What manufacture of head what type of head and what number nozzle is installed or if a spray what is the throw and arc of spray nozzle. A typical residential rotor has a perspiration rate of .5-1” of water and a spray head has about 1.5. This is most likely your problem since the app thins it’s getting quadruple the heater it is actually getting. Good luck
