What is a disadvantage of using steel pipe?

The potential for internal and external corrosion is a significant disadvantage when using steel pipe in water distribution systems. Steel is susceptible to rust and corrosion, especially when in contact with moisture and certain chemicals found in water. This can lead to a reduction in the pipe's lifespan, potential leaks, and contamination of the water supply. Corrosion can occur from internal factors, such as water chemistry, as well as external factors, such as soil conditions and environmental exposure. Proper protective coatings and cathodic protection methods can mitigate these issues, but they add complexity and cost to the system's maintenance. Understanding this disadvantage is crucial for accurate planning and management of water distribution systems.

While high initial cost, limited availability, and inflexibility during installation are valid considerations when selecting piping materials, they do not directly impact the operational integrity of the system in the same way that corrosion does. Corrosion presents a more immediate and potentially hazardous concern for water quality and pipe longevity.