Water pipe corrosion is a common yet often overlooked issue that can significantly affect both residential and commercial plumbing systems. It occurs when metal pipes degrade over time due to reactions with environmental elements such as oxygen, moisture and minerals in the water. This gradual breakdown can lead to rust, leaks, reduced water quality and eventually system failure.
Understanding the causes, warning signs and prevention methods of water pipe corrosion is essential for maintaining a safe, reliable water supply and avoiding costly repairs.
Common Causes of Pipe Corrosion
There are several factors that contribute to water pipe corrosion. One major culprit is high water velocity, which can wear down the internal surfaces of pipes over time, much like friction erodes a surface. This can result in thin walls and leaks.
Low pH levels in water, or acidic water of a pH level below 7, react aggressively with metals like copper and steel, accelerating corrosion. Likewise, hard water, which contains excess minerals like calcium and magnesium, can cause scale build-up. This restricts water flow and encourages internal deterioration.
The age and material of the pipe are also significant factors. Older pipes made from galvanised steel or early copper alloys tend to corrode faster, especially if they’ve been in use for several decades.
Spotting and Addressing Corrosion Early
Early detection can prevent extensive damage. Key visual signs include discolouration around pipe joints, rust or bluish-green stains on copper pipes. Scaling or flaking on the pipe surface often indicates mineral build-up, a precursor to internal corrosion.
Functionally, low water pressure, discoloured tap water or unusual pipe noises may point to internal corrosion or partial blockages. Unpleasant odours from taps could also signal bacterial activity within compromised pipes.
For projects involving upgrades or replacements, high-quality copper pipe fittings and press systems can help improve durability and corrosion resistance.
To learn more about copper pipe fittings, consider checking an expert such as https://watkinspowis.co.uk/products/copper-pipe-fittings-and-press-systems.
Ultimately, proactive maintenance and regular inspections are essential. Given that water pipe failures cost the UK millions annually, recognising and managing corrosion risks is crucial for safeguarding both property and health.
