What causes pinholes in pipes?

Hard water is water with a high concentration of dissolved minerals like calcium, magnesium and other metals. Over time, these metals can wear out the inner lining of copper pipes, eventually creating pinhole leaks.

What does a pinhole leak look like?

The first sign you’ll probably see of pinhole leaks is spots of discoloration on the walls or ceilings. Mold and mildew appearing in odd places where there shouldn’t be water is also a warning. If you have multiple pinhole leaks, you may see a rise in your water bills.

What is the average cost to fix a water leak?

Water Main Leak Repair Cost Calculator

How often does a pinhole leak in copper pipe occur?

Under the right (worst) conditions, copper pipe may develop pinhole leaks within only two years of installation. Pinhole leak in copper pipe is a common problem all over the US.

Why are there pinholes in my water pipes?

You see, as minerals in the water supply are pushed at high speeds inside your pipes, they can wear out the inner lining of the pipe, especially in areas where water is forced to change flow direction quickly (like fittings and elbows). Once this lining is worn out, small pinhole leaks can form.

What should I do if I have a pinhole leak in my pipe?

If you do have to repair individual pinhole leaks, we recommend adding a water filtration or softening system to prevent future pinhole leaks. Water filtration and softening reduce hard water deposits, which can cause leaks over time because they act like sandpaper against your pipe’s walls.

Why are there leaks in my copper pipes?

Another reason why your copper pipes have leaks is what’s called pitted corrosion, an extremely localized type of corrosion that attacks small areas on the inside surface of copper pipes. Well, there hasn’t been a conclusive study on what causes pitted corrosion, here are some possible theories:

What causes a pinhole leak in a copper pipe?

High pressure can also be responsible for water hammer, which will cause its own problems. Pinhole leaks are small leaks that come about from the process of “pitting corrosion” on the inside of the pipe; this is one of the most common causes of leaks in copper pipes.

Why is there a pinhole in my water line?

If they’re placed too close together it increases turbulence, which means water grates harder against the inner lining of the pipe. However, adequate space between fittings on a line of pipe reduces turbulence, which could prevent pinhole leaks from forming.

What should I do if I have a pinhole leak in my house?

If your pinhole leaks are all on the same piece of pipe, you can most likely replace that stretch of pipe instead of repiping your entire home. If you do have to repair individual pinhole leaks, we recommend adding a water filtration or softening system to prevent future pinhole leaks.

What causes a pipe to leak from the inside out?

The turbulence causes the water to erode the pipe from the inside out. When a leak occurs at a joint it may be due to the installer failing to ream out the copper after cutting it. When a copper pipe is cut with a pipe cutter it gets pinched as it’s being cut. This creates a lip on the inside of the pipe.