3 mandatory pieces of equipment a pump technician should always carry:

1. Multimeter: A multimeter is essential for testing electrical circuits, voltage, and continuity in pump systems. It helps diagnose electrical issues and ensure the proper functioning of the pump.

2. Pipe wrenches: Pipe wrenches are necessary for tightening and loosening pipe fittings, nuts, and bolts in pump systems. They are essential for maintenance and repair tasks.

3. Safety gear: Pump technicians should always carry personal protective equipment such as gloves, safety glasses, and ear protection to ensure their safety while working on pump systems. This equipment helps prevent injuries and accidents while handling pumps.

1. Pressure gauge
2. Multimeter
3. Amp clamp