Pin holes in copper pipe

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    • #274995
      Andrew Galea

      The house is 10 years old. We are now experiencing pin holes in the copper pipes that supply hot water. We have a recirculating H/W pump. The pipes are buried below the concrete foundation. Does anyone know why this is happening and how to fix it??

    • #290888

      The water is probably slightly acidic. In Seattle the city water is tough on copper pipes, especially in apartment buildings and condo’s. When I worked for a mechanical contractor several years ago we did a fair amount of business replacing copper wter lines. Copper usually was uesd again but we made sure that we used the heavy wall type m copper pipe.

    • #290889

      Check out the following websites. and They both have some good info.

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