Pump runs normally but there is water dripping from the motor end shield

Safety first: Turn off power and do not run the pump until the leak is repaired to avoid electric shock and motor damage.

• Confirm leak path: Verify that water is emerging from the motor end, not from a nearby pipe or union. This indicates seal failure.
• Disassemble pump wet end: Remove the pump housing and impeller to access the mechanical seal. Inspect both rotating and stationary faces for wear or cracking.
• Inspect shaft and sleeve: Check the motor shaft or sleeve where the seal rides for grooves or corrosion. Replace the sleeve or motor shaft if damaged.
• Install new seal: Fit a new Calpeda mechanical seal kit, ensuring all surfaces are clean and that you do not touch the seal faces with bare fingers. Reassemble carefully.
• Assess motor condition: If water has entered the motor, have it inspected by a motor repair shop. Drying and bearing replacement may be required.