Skip to Content

How to Fix a Pinhole Leak

One of the easiest ways to fix a pinhole leak is to apply epoxy putty. It combines resin and hardener in a premeasured stick. Simply tear off the required amount, knead it with your hands, and push it into the pinhole. Once pressed into the pinhole, epoxy putty hardens and becomes uniform in colour. It can then be left to cure for about 24 hours before you need to do any further repairs.

Pitted corrosion

If you have a pinhole leak, you may have experienced pitted corrosion. This occurs when water, particularly acidic water, dissolves copper pipes. This process results in a grayish patch on the metal, which weakens it to the point that water leaks out. While this is a minor leak, it can cause significant damage to your home. Pitted corrosion is an important issue to identify and treat immediately.

When the corrosion reaches the point where a pinhole leak develops, the pipe is compromised. Thankfully, pitting corrosion is easily preventable, but you should still be aware of the signs. These include hot or warm spots in the floor, soaked carpets, and unusually high water bills. These are all signs that your pipes may be failing. A pinhole leak is the result of internal pitting corrosion of copper. While pitting corrosion is rare in the UK, there are three main types of this corrosion.

The process begins in the copper tubing, where microbes cause the damage. Residual oil films on the surface of copper tubing promote the growth of microbes. The temperature of water is also a factor. Microbes prefer a particular temperature range. Once inside the pipe, they may actively participate in pitting. Pitting bacteria are also able to use the process of copper oxidation as a source of energy.

In this study, researchers used the same water quality conditions for the small-scale and large-scale tests. They noted a significant difference in time to failure, chloride demand, and pitting, which was observed at lower levels. Pitting was also not observed when the phosphate dosage was low. The pits did not develop for the four-year control period, suggesting that the pitting is a microbial process.


The best way to stop the corroding water from destroying your pipes is to catch the pinhole leak as early as possible. This leak will eventually spread and lead to huge sections of pipe being destroyed. However, if you are unable to spot the leak early, you can call a plumber to help you repipe your home. If the leak is isolated, you may be able to patch the pipe and get back on the road to plumbing perfection. However, if it spreads into the surrounding pipes, repiping your home is your only option.

The most common type of pinhole leak is due to chemical damage. Because copper is a durable metal, it is commonly used in plumbing. However, it also corrodes over time. Constant exposure to water and elements eat away at the protective coating, leaving the pipes vulnerable to leaks and corrosion. If you are unable to notice the rusting, contact a plumber immediately. A professional plumber can help you identify the rusting that is caused by a pinhole leak.

If you are unable to detect the rusting caused by a pinhole leak, call a plumber to check your pipes. You should also contact the city’s water department to ensure the safety of your pipes. Water pressure should be monitored to avoid further deterioration. Moreover, you must avoid using water that is too acidic or too basic. If you do not clean your pipes, they may even become electrified. This will cause more water bills, which will also damage your pipes.

A pinhole leak can cause a variety of issues, including a higher water bill and decreased water pressure. You should investigate the source of the leak to avoid the deterioration of your property. If the leak is inside the wall cavity, you should check for dripping sounds. Additionally, check for discoloration. Copper pipes should be copper-colored. If they become green or blue, it means that they have been oxidized and are becoming weaker.


There are several ways to detect aging and pinhole leaks. You can first check the condition of copper pipes to determine if they are tainted. In some cases, minimal corrosion can be fixed with a piece of new piping and epoxy on both the inside and outside surfaces. Heavy corrosion, however, may require re-piping the section of pipe affected by the leak. For more information on aging and pinhole leaks, contact your local water provider.

As time goes by, the amount of water that accumulates in the pipe will grow, causing more pinhole openings in the same area. The longer the leak goes unchecked, the more it will deteriorate until huge sections of pipe are destroyed. It is a myth that you can simply put a bucket under the leak to catch it, but the constant pressure of the water will eventually weaken the pipe to the point that it will burst, sending gallons of water gushing out and flooding your floors and walls.

Another common cause of pinhole leaks is copper. Copper pipes were once the most popular material for plumbing. While copper is durable, it corrodes. The water erodes the pipe and causes it to become thin and brittle. As time goes on, copper can also break through metal pipes and develop small pinholes. If the pipes were installed improperly, they are more likely to develop pinholes than new ones. A professional plumber should install new pipes to ensure that the aging pipe doesn’t become a source of leaks.

The most common cause of pinhole leaks is extremely hard water. Water softening and water filtration help combat hard water deposits that act as sandpaper on the walls of pipes. If you want to prevent aging and pinhole leaks, invest in a full house water softener and make sure you schedule routine maintenance for it. If you suspect that your pipes are leaking, contact a plumber to repair the damaged part.

Exposed copper

If you notice wet spots on your walls or ceiling, you probably have an exposed copper line in your home. The leak is likely coming from a pipe in a basement or unfinished ceiling. If you can find these pipes, you can use pipe clamps to stop the leak until a plumber can get to it. If the wet spots persist, you should test the water chemistry in the area. Water with a high pH level, such as 7.2, will cause copper to corrode faster than normal.

If you do not see a problem with the piping, try putting a pencil tip inside the hole. If the leak is not that large, you can try applying a piece of bandage material to cover the damaged pipe. After the bandage is dry, apply the repaired pipe section. This way, you will not get wet. If the patching process is not successful, you can use duct tape to seal the hole.

If your leak is small, but consistent, you should inspect your copper plumbing for any cracks or corrosion. If the pinhole is in a corner of your plumbing, it may be a symptom of improper water chemistry or a faulty installation. Other causes include improper water chemistry, improper installation, and improper use of flux by the plumber. You can also check for signs of moisture in the area and copper’s patina.

If you notice a greenish-blue coating on your copper pipes, chances are you have a pinhole leak. The bluish color indicates stuff coming from inside the pipe, and the copper has begun to oxidize. This is a sign of a more serious problem. If the leak is not fixed, it will eventually lead to severe water damage that can ruin the structure of your home. So, it’s crucial to get it fixed as soon as possible.

Water pressure problems

When you notice water pressure problems in your home, it may be a sign that your pinhole leak is causing a problem. This problem is usually caused by a leaky pipe that prevents full water flow to its exit. While it may only affect one part of the home, low pressure can impact every area of the home. If you notice a slow loss of water pressure, it’s time to call a plumber to inspect your system.

The water flow rate inside your pipes should be eight feet per second in cold and five feet per second in hot water to avoid a leak. Using too much water may result in an increased water bill. In addition, a pinhole leak can become larger than expected as the water use increases. Fortunately, you can fix this problem if you contact a professional plumber right away. However, it’s important to note that a pinhole leak can cause visible damage to your property and should not be overlooked.

The best way to detect a pinhole leak is to inspect the entire pipe. A small hole in the pipe will allow water to leak out. If you can’t locate the leak, you can check the water meter to see where it is located. Pinhole leaks are caused by a process known as pitting corrosion. This type of corrosion causes holes in the materials. There are several types of corrosion. Some are caused by the same process, while others are caused by other factors.

Another common cause of a pinhole leak is improper installation or poor water quality. Inefficiently installed pipes are more susceptible to pinhole leaks than new ones. Also, old pipes can interact with metals. This makes them ineffective at resisting corrosion, which is one of the most common causes of leaks. This means that your plumber will have to replace them. You might also have to replace the pipes. The only way to solve this problem is to find the root cause.