What should you do first if a pump is making unusual noises?

If a pump is making unusual noises, the first action should be to shut down the pump. This is important because unusual noises can indicate a potential malfunction that may lead to further damage or create a safety hazard if the pump continues to operate. Shutting down the pump ensures that no additional strain is placed on the equipment and prevents the risk of injury to personnel or damage to the system.

Once the pump is safely turned off, you can then proceed to investigate the cause of the noise. This can involve checking for foreign objects, inspecting electrical connections, or measuring output pressure to diagnose the issue. However, the priority is to ensure safety and protect the pump by shutting it down first.