Potential Health Hazard of PP-R Pipe Degradation in Potable Water

A recent case study reveals how degraded PP-R pipes may release loose fibers into drinking water, raising new questions about long-term safety and material selection in potable water distribution systems.

This case study explores a real-world re-piping project at a Southern California residential complex, where PP-R piping degraded after 10 years of service. Engineers replaced the system with Corzan^® CPVC, prompting a deeper investigation into the failure.

Key insights include:

• How chlorine-based disinfectants accelerate PP-R degradation
• The limitations of sacrificial antioxidants in pipe longevity
• Evidence of loose glass fibers within cracked pipe interiors
• Potential implications for water quality and public health

Read the full case study to:

• Understand the science behind PP-R pipe failure
• Learn how environmental factors affect piping performance
• Discover why CPVC may offer a safer, more reliable solution