CWEA Collection Systems Maintenance Practice Test 2025 – The All-in-One Study Guide for Exam Success!

Poly pigs are specialized tools used in pipeline maintenance, particularly in cleaning operations. They are designed to facilitate the removal of debris and buildup within the pipeline systems. The correct method of propulsion for poly pigs during these cleaning operations is through pressurized water flow.

This method is effective because pressurized water can propel the pig forward, allowing it to navigate the pipeline and effectively clean the walls. The force of the water ensures that the pig can overcome friction and any obstructions that may be present in the pipeline. As the water flows, it carries the poly pig along the pipeline, which then scours the interior surface, removing any accumulated materials.

Using pressurized water flow not only maximizes the cleaning efficiency but also minimizes the physical effort required from operators, as they do not need to rely on manual methods or additional mechanical devices to push the pig through the system. This approach enhances the overall effectiveness of cleaning operations in collection systems.