If a large pump's rotation is incorrect after being bumped, what should be done?

When a large pump's rotation is incorrect, switching the motor's electrical leads to reverse the rotation is the appropriate action. This process essentially alters the direction of the current feeding the motor, which in turn changes the rotation direction of the pump.

Motors typically have a specific wiring configuration that determines their rotation direction. By switching the leads, you effectively change the phase sequence of the motor which can be a straightforward method to correct rotation issues without needing to dismantle the pump or replace any components.

In contrast, replacing the motor is a costly and unnecessary action when the issue can be resolved more easily. Adjusting the pump speed settings or increasing the power supply does not address the fundamental issue of incorrect rotation; instead, they may create further complications without resolving the original problem. Therefore, adjusting the leads is the most efficient and effective solution.