At fourteen minutes and fifty seconds, a hairline crack appeared on the casing’s volute. It was no bigger than a thumbnail. But Leo knew—ANSI HI 9.8 didn’t care about size. It cared about pressure.
At 400 psi, the pump yawned. At 800, it began to sing—a low, resonant hum that vibrated up through Leo’s boots. By the time the needle kissed 1,150 psi, the shop had gone quiet. Even the forklift driver killed his engine. ansi hi 9.8
Leo counted the minutes. Five. Ten. Fourteen. At fourteen minutes and fifty seconds, a hairline