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Water mains play a key role in delivering clean water to our homes and businesses. Despite manufacturers’ best efforts, however, many of these mains eventually break.
Main breaks happen suddenly and seemingly out of nowhere, resulting in floods that damage our homes and disrupt the supply we take for granted every time we turn on the tap. But why does this happen? What can we do to prevent it? And what should we do if one does occur?
With over three decades of experience, we at Greenstar know all the ins-and-out of how water systems work. In the guide below, we’ll explain what water mains are, why they burst, and the practical steps you can take to prevent or fix a mains break.
Water mains are one of the many components that make up a water distribution system – the vast, interconnected network of pipes beneath our feet. This system features large transmission lines that supply water to smaller distribution lines, eventually reaching our homes. Think of it like a giant metal cardiovascular system, with the water mains acting as the major arteries.
Given the size and complexity of the setup, it’s no surprise that water mains can burst. Read on for a closer look at why!
Water main breaks are commonly caused by a combination of ageing and corrosion. Many water mains are constructed from materials like iron or steel, which can corrode over time. As these pipes age, they become more brittle and susceptible to cracking or breaking under pressure. This natural ageing process weakens the structural integrity of the pipes, making them more prone to bursting.
Chemicals in the soil or water also play a role in making pipes more likely to fail. They gradually corrode the pipes over time, increasing the risk of breaks and disruptions in the water supply.
In colder climates, water in the pipes can freeze, causing the water to expand and potentially rupture the pipe. When the temperature rises, the thawing process can also contribute to the weakening of the pipes.
The ground isn’t static; it shifts and settles over time. Changes in soil conditions, seismic activity, or even construction work nearby can exert pressure on water mains, leading to cracks or breaks.
Accidental puncturing or severing of water mains can occur when builders digging nearby are unaware of the layout of the water system underground.
Over time, tree roots seeking water and nutrients can intrude into the metal pipes, causing leaks and potential pipe bursts.
High water pressure in pipes can strain the material, making ruptures more likely. Pressure spikes may happen due to various factors, like pump malfunctions or sudden changes in demand.
Similarly, if the flow of water in a pipe is suddenly stopped or changed, a phenomenon known as ‘water hammer’ can occur. The abrupt change in flow generates a shockwave that travels through the piping system, causing a loud banging or hammering sound. The sound is often likened to the noise of a hammer hitting the pipes. The shockwave puts stress on the pipes, especially at bends or weak points, potentially leading to bursts.
Using poor-quality or defective materials when constructing water mains can create weaknesses in the pipes, as the materials are less durable and more prone to bursting. Similarly, using improper installation techniques can also result in the same negative effects.
While it’s hard to completely eliminate the risk of water main breaks, there are some measures you can take to minimise their occurrence and impact:
If you hear a loud gushing sound or see water collecting on the ground, there could be a water main break nearby. In that case, it’s important to quickly shut off your water at the main valve, usually found near the kerb or in your basement. You should also report the leak to your local water utility as soon as possible.
If you’re in charge of maintaining the mains in your area, arrange for repairs or relining through a trusted plumbing company. Acting promptly can minimise the effects of the water main break and prevent additional damage.
Let Greenstar fix your water main issues once and for all. With over 30 years serving Dorset, Hampshire, and Wiltshire, we have the expertise and advanced technology to repair any water main, big or small.
Whether it’s a small crack or a more serious rupture, our accredited technicians will locate the pipe damage and make professional repairs quickly and efficiently. We use state-of-the-art pipe inspection cameras and equipment so we can fix your pipes with minimal landscape disruption.
Don’t put up with wet basements, flooding, or sinkholes. Get a free quote online or call us on 01202 355 344, and trust us to restore your water flow in no time.
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