$**$The answer is in the squared brackets, $57\mathrm{.}0$ seconds, please help me get to that answer. I keep getting over $3$ minutes and that is not correct!$**$

A water truck drives slowly around a construction site, spraying water to keep dust down. A pump maintains a constant pressure of $100$ kPa $,$ gage, and the water is dispersed through $20$ spray nozzles, each of diameter $1$ cm $.$ If the truck is initially filled with $4000$ L of water, and the flow rate is constant, determine how long the truck can drive before a refill is needed. $[57\mathrm{.}0$ s$]$