What are some cons to hydro jetting in pipe maintenance?

Hydro jetting is a method used to clear clogged or blocked pipes using high-pressure water jets. While this technique is effective for many sizes of pipes, efficiency can indeed decrease as the size of the pipe decreases. This is primarily due to the difficulty in achieving the necessary pressure and water volume to effectively clear smaller pipes compared to larger ones. Smaller diameters can lead to a more confined space where the high-pressure water may not disperse as effectively.

In addition to the limitations posed by smaller pipe sizes, hydro jetting can also require careful assessment of the pipe's material and condition. It is particularly effective for grease, scale, and mineral deposits; however, if used inappropriately or in smaller pipes under certain conditions, it could potentially damage the pipes or cause leaks.

The other options present advantages that are not aligned with the cons of hydro jetting. For example, it is known for being cost-effective and efficient in many situations, can often clear blockages in a single pass, and typically requires specialized equipment, contrary to what some other methods may imply. Therefore, the concern with the decrease in efficiency relative to pipe size becomes a valid drawback worth considering when determining the suitability of hydro jetting for a given maintenance task.