Which of the following is an effect of corrosion in water distribution systems?

Corrosion in water distribution systems primarily leads to the reduction of pipe integrity. As pipes corrode, their structural strength diminishes, which can result in leaks, bursts, or even complete pipe failures. This degradation contributes to various problems within the distribution system, including contamination of the water supply as rust particles and metal ions are introduced into the water, impacting both safety and quality.

The presence of corrosion can also necessitate more frequent maintenance and repairs, further affecting the system's overall efficiency and longevity. Addressing corrosion issues is critical to ensure the reliability of water infrastructure and to maintain the safety standards for drinking water.

In contrast, the other choices either suggest positive outcomes (like water purification and enhanced water quality) or a misinterpretation of pressure dynamics (increased water pressure), which are not direct results of corrosion and can be influenced by various other factors in the system.