My pump has difficulty priming, or creates cavitation near the fittings/ports. How can I avoid this?

Oftentimes, a pump can struggle to prime, or can create cavitation, if there is small air leak in the system. Check that any fittings, valves, tubing, etc. are all sealed and firmly in place. It may be necessary to tighten fittings or use a pipe thread tape to help prevent air from entering the system.