The Best Water Pump Troubleshooting Ideas. Web an effective pump troubleshooting tool will always begin with the question when did this start? common conditions requiring pump troubleshooting expertise are cavitation, hydraulic imbalance, undersized shafts, and mechanical seal failure. One of the more common problems with water pumps is a reduced or lower than expected water flow.

Web 740k views 6 years ago. If you experience any of these, there's a good chance you can solve the problem yourself. Causes of worn seals include wear over time, lack of proper maintenance, abrasive fluids and excessive heat.