Why is corrosion control important in a distribution system, and what are common methods to achieve it?

• A. To prevent mineral deposition and reduce taste; methods: water softening only
• B. To prevent lead/copper leaching and pipe deterioration; methods: adjust pH/alkalinity, use corrosion inhibitors, optimize chlorine residuals, material replacement
• C. To increase disinfection byproducts; methods: add more chlorine
• D. To improve taste by adding sweeteners

Answer: (B)