4 Reasons Why Your Tap Water is Brown

Finding brown water flowing from your taps can be alarming. This discolouration not only looks unappealing but can raise concerns about the safety and quality of your water supply.

Understanding why this happens is crucial for homeowners who want to ensure their drinking water is safe to use.

Several common factors can cause tap water to turn brown, ranging from issues within your home’s water heater to broader concerns with the local water supply. By identifying the underlying reasons, you can take appropriate steps to address the problem and restore clear, clean water in your home.

1. Rusty Pipes

One common cause of brown tap water is rusty pipes. Over time, metal pipes, especially those made of iron, can corrode, forming rust. This rust can flake off and mix with the water, causing it to take on a brownish hue. Older homes are particularly susceptible to this issue, as their plumbing systems are more likely to have aged, corroded, leaking pipes.

The signs of rusty water pipes can include not only brown water but also a metallic taste and a slight odour. It’s important to address these signs promptly, as rust can affect the quality of the water in your kitchen and impact your bathroom plumbing, potentially posing health risks if consumed over a long period. Although the rust itself is not typically harmful, it can indicate the presence of other contaminants.

\Addressing a rusted plumbing pipe often involves replacing the affected sections of the plumbing. In some cases, a complete overhaul of the home’s hot water system might be necessary, especially in older properties. Regular maintenance and timely upgrades can help prevent this issue from arising and ensure a reliable supply of clear, clean water.

2. Sediment in Water Supply

Sediment in your water supply is one of the common reasons why your tap water might appear brown.

Here’s why sediment ends up in your water and what it means:

• Natural occurrence: Sediment is naturally present in many water sources, like rivers and lakes. These tiny particles of soil, sand, and minerals can get stirred up, especially during heavy rains or when water levels change rapidly.
• Pipe maintenance and repairs: Sometimes, maintenance work on water pipes or nearby construction can disturb the sediment that has settled at the bottom of the pipes. When these sediments get mixed back into the water flow, they can cause your tap water to look brown.
• Ageing infrastructure: Old or corroded pipes are more likely to release particles into the water. Over time, the inner walls of these pipes can deteriorate, flaking off rust and other materials that mix with your water supply.
• Water main breaks: When a water main breaks, it can disrupt the normal flow of water, causing sediment to become suspended and flow into your home’s plumbing system. This sudden influx of sediment can temporarily discolour your tap water.

While sediment in your water supply might be concerning, it is usually not harmful and can often be cleared up by letting your tap run for a few minutes. If the problem persists, contacting your local water utility can help ensure the water quality is safe and clean.

3. Disturbed Water Mains

Disturbed water mains can be a significant reason why your tap water suddenly turns brown. Here’s a closer look at how this happens:

• Maintenance work: Routine maintenance and repairs on water mains can disturb the sediment that has settled at the bottom of these pipes. When this sediment gets mixed back into the water supply, it can cause your tap water to appear brown temporarily.
• Breaks and leaks: A water main break or significant leak can disrupt the normal flow of water, causing sediment to get stirred up. This disruption can introduce a lot of particles into your water supply all at once, resulting in discoloured water.
• High water demand: During times of high water usage, such as firefighting or when large numbers of people use water simultaneously, the increased flow can disturb the sediment in water mains. This sudden increase in water movement can mix sediment into the supply, leading to brown water from your taps.
• Ageing infrastructure: Older water mains are more prone to breaks and leaks. Over time, the pipes can corrode and accumulate rust and other materials. When these old pipes are disturbed, the rust and debris can mix with the water, causing discoloration.

While disturbed water mains can cause brown water, it’s usually not harmful and should clear up on its own. Running your tap for a few minutes can help flush out the sediment. If the issue continues, it’s best to contact your local water utility for assistance.

4. Natural Mineral Content

The natural mineral content in your water supply can also cause brown discolouration. Minerals such as iron and manganese are naturally present in many water sources and can give the water a brown or reddish tint. While these minerals are not harmful at low levels, they can affect the appearance and taste of your water.

High mineral content is more common in areas with groundwater sources, as water passing through mineral-rich soil and rock can dissolve these elements.

Over time, mineral deposits can build up in your pipes and plumbing fixtures, leading to discoloured water. Regular water testing can help identify elevated mineral levels and determine the best course of action.

Installing a water filtration system designed to remove minerals can significantly improve tap water quality. These filters can help reduce iron and manganese concentration, ensuring clearer, better-tasting water. It’s essential to choose a filter appropriate for your specific water quality issues and maintain it according to the manufacturer’s instructions for optimal performance.

Prevent the Invasion of Dirty Water

Brown tap water can be unsettling, but understanding the underlying causes can help you address the issue effectively. Rusty pipes, sediment in the water supply, disturbed water mains, and natural mineral content are the most common culprits. Each of these issues requires a different approach to resolve, ensuring your water remains safe and clear.

By staying informed and taking proactive steps, such as regular plumbing maintenance and installing appropriate water filters, you can prevent or quickly remedy brown water issues. Always seek professional advice if the problem persists to ensure your home’s water quality is maintained.

Please note: This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.