Picture this scenario: You turn on your tap for a morning cup of tea, and instead of a clear stream of water, you get a few rusty-coloured dribbles. While not uncommon, this issue is often indicative of a larger problem within your home's piping system — corrosion. Corrosion in pipes can lead to a variety of problems, from poor water quality to potential leaks. But why does it happen, and what can be done about it? In this post, we'll dive deep into the causes of pipe corrosion, how to identify it, and the best approaches to solve and prevent it.
Corrosion is a natural process that occurs when metal pipes react with oxygen in the presence of water, leading to deterioration. This can happen to various types of plumbing materials, although it is most prevalent in older steel or iron pipes. The impact of corrosion in your home's piping system can be significant, affecting water quality, reducing water flow, and even causing leaks.
How Corrosion Occurs and the Role of Water Quality
Corrosion typically occurs in certain conditions influenced by the pH level, oxygen level, and mineral content of the water. Water with a high oxygen content or that is too acidic or alkaline can speed up corrosion. Homes in areas with hard water are especially prone to corrosion issues due to higher contents of calcium and magnesium, which can accelerate the deterioration of metal pipes.
Signs of Corrosion in Your Pipes
Identifying corrosion early can save a lot of trouble down the line. Some common indicators include:
- Discoloured Water: Brown or yellow water is a telltale sign of rust.
- Tainted Taste or Smell: Metallic taste or odd smells can also indicate pipe issues.
- Reduced Water Pressure: Corrosion can lead to build-up inside the pipes, reducing flow and pressure.
- Frequent Leaks: Weak, corroded pipes often leak at joints and seams.
How to Check for Pipe Corrosion
While spotting external corrosion can be straightforward, internal corrosion might remain hidden until problems become severe. A simple visual check of exposed pipes, such as those under sinks or basements, can reveal spots, dimples, flaking, or discolouration — all signs of corrosion. For a more thorough check, look at the water coming out of your taps. Notice any change in colour or a prolonged presence of tiny particles in your water as a sign of possible internal deterioration.
DIY Steps for Handling Minor Corrosion
For minor external corrosion on visible pipes:
1. Turn off the water supply and dry the affected area.
2. Use a wire brush to scrub off the rust gently.
3. Apply a paste of baking soda and water to the area, leave it for a few hours, then rinse and dry.
4. Consider painting over the area with a rust-proof paint designed for metal.
Keep in mind that these measures are temporary and often do not solve underlying issues of internal corrosion.
Why Professional Pipe Replacement Might Be Necessary
While DIY methods can address minor issues, significant or widespread corrosion typically requires professional intervention. Plumbers can conduct a more comprehensive assessment, often involving camera inspections, to determine the extent of the damage. Replacing old metal pipes with modern materials such as copper or PEX, which are more resistant to corrosion, might be recommended.
Choosing the Right Professional for Pipe Replacement
Selecting a qualified and experienced plumber is crucial. Look for professionals who are licensed and have good reviews or testimonials from previous work. It's also wise to choose a plumber who offers guarantees on their work, providing additional peace of mind on the effectiveness of the repair or replacement.
Long-term Prevention of Pipe Corrosion
Preventive measures can help you avoid the hassles of corrosion and its impact on your plumbing system. Here are some prophylactic steps:
- Regularly check and maintain your pH and mineral levels in water.
- Install a water softener if you live in a hard water area.
- Consider periodic replacements of old sections of piping that show early signs of wear.
- Ensure your home's plumbing system is properly grounded in electrical works, as improper grounding can accelerate corrosion.
Conclusion
Corrosion in pipes is a common yet troublesome issue that can affect water quality and plumbing functionality in any home. Recognising the early signs of corrosion and addressing them promptly, either through DIY measures or professional assistance, is crucial. For extensive or internal corrosion, it’s prudent to consult with a plumbing professional to discuss replacement options. Remember, proactive steps towards maintaining and protecting your home's plumbing can prevent serious issues down the line, ensuring clean and safe water for everyday use.
