Copper Pipes Can Turn Green When Buried Underground
Why Are My Copper Pipes Turning Green? And How Can I Stop It?
Copper plumbing is a popular choice for its durability and corrosion resistance. However, you might have noticed your copper pipes developing a greenish hue over time. This green discoloration, known as patina, is a natural process that occurs when copper is exposed to air and water.
What Causes the Green Color?
Oxidation: When copper reacts with oxygen and water, it forms a layer of copper oxide. This is similar to rust forming on iron, but unlike rust, copper oxide actually protects the underlying metal from further corrosion.
Other Factors: The specific shade of green can vary depending on other environmental factors like humidity, the presence of salts or acids in the water, and even the type of flux used during pipe installation.
Is Green Patina Harmful?
In most cases, the green patina on copper pipes is not harmful and won't affect your water quality. It's simply a cosmetic issue. However, if the discoloration is excessive or accompanied by other signs like leaks or pitting, it could indicate a more serious problem with your plumbing system.
