Pinhole leaks in copper pipes are a common plumbing issue that can lead to water damage, increased water bills, and potential structural damage if not addressed promptly. These leaks occur as tiny holes in the copper pipe, often caused by corrosion or chemical reactions within the water supply. Below is an overview of the issue and what you can count on your plumber to do to address it.

Identification of Pinhole Leaks

  • Visual Inspection: Plumbers can visually inspect exposed copper pipes for signs of pinhole leaks. These leaks appear as small drops or wet spots on the pipe's surface.
  • Pressure Testing: Plumbers may conduct a pressure test to detect hidden leaks in the copper pipe system. By increasing the water pressure and monitoring for pressure drops, they can identify areas where pinhole leaks are present.

Repair Options

  • Patching: In some cases, a plumber may use epoxy or a specially designed pipe repair product to patch the pinhole leak. These materials create a temporary seal over the leak, preventing further water damage until a more permanent solution can be implemented.
  • Spot Replacement: If the pinhole leak is isolated to a small section of the copper pipe, a plumber can cut out the affected portion and replace it with a new section of copper pipe. This approach eliminates the damaged area and ensures a reliable, leak-free connection.
  • Repiping: If the copper pipe system is aging or has multiple pinhole leaks, repiping may be the most effective solution. A plumber can replace the entire copper pipe system with new pipes made of a different material, such as PEX (cross-linked polyethylene) or CPVC (chlorinated polyvinyl chloride). These materials are less prone to pinhole leaks and offer increased durability and longevity.

Preventive Measures

  • Water Treatment: Plumbers can assess the quality of the water supply and recommend appropriate water treatment options to reduce the occurrence of pinhole leaks. This may involve installing water softeners, pH adjusters, or other treatment systems to mitigate the factors contributing to pipe corrosion.
  • Cathodic Protection: In some cases, a plumber may suggest implementing cathodic protection, which involves installing sacrificial anodes to protect the copper pipes. Anodes attract corrosion and extend the lifespan of the pipes by sacrificing themselves instead.
  • Regular Maintenance: Plumbers can provide routine maintenance services, including pipe inspections, to detect early signs of corrosion or pinhole leaks. By identifying and addressing issues in their early stages, potential damage can be minimized.

Speak with a licensed plumber to assess the extent of pinhole leaks and determine the most appropriate solution for your specific situation.

For more info, contact a local plumber