Have You Got Noisy Water Pipes? 3 Reasons and Solutions

Noisy water pipes can be a frustrating issue in many Australian homes, disrupting the peace and quiet that we all cherish.

Whether it’s a sudden bang when you turn off a tap or a persistent rattling sound, these noises often indicate underlying problems in your plumbing system that need attention.

Understanding the causes behind these noises is the first step in resolving them. In this article, we’ll explore three of the most common reasons for noisy water pipes and offer practical solutions to restore tranquillity in your home.

1. Water Hammer

Water hammer is one of the most common causes of noisy pipes in homes. It occurs when the flow of water is suddenly stopped or redirected, creating a shockwave that travels through the pipes. This shockwave can cause a loud banging noise.

High water pressure or the quick closing of valves, such as those on washing machines or dishwashers, often contributes to this issue. Water hammers are also common in copper pipes due to their rigidity, and the issue can be exacerbated by the temperature changes in hot and cold water lines.

Solution: Install Water Hammer Arrestors

Water hammer arrestors are a highly effective solution for eliminating the banging noises caused by water hammer. These devices absorb the shockwave created when water flow is suddenly halted, preventing it from reverberating through the pipes.

Water hammer arrestors can be installed near appliances or fixtures that frequently cause this issue, such as dishwashers or washing machines. By dampening the force of the water, these arrestors protect your plumbing system from long-term damage while ensuring a quieter home environment. Alternatively, air chambers could be used to absorb the shock instead of the arrestors.

2. Loose Pipe Fittings

Another frequent culprit behind noisy pipes is loose pipe fittings. When pipes aren’t securely fastened, they can move around and hit walls or other objects, resulting in rattling or knocking sounds.

This issue is often exacerbated by thermal expansion and contraction, which causes drain pipes to expand and contract with temperature changes.

Solution: Secure Loose Pipes

Loose pipes can cause a variety of noises, including rattling and knocking, as they move against walls or other surfaces. To address this issue, it’s essential to secure the pipes properly. This can be done using pipe clamps or brackets, which hold the pipes firmly in place, preventing movement.

When securing pipes, it’s important to check areas where pipes are most likely to be loose, such as under sinks or in basements. Additionally, insulating the pipes with foam padding can reduce vibrations and further minimise noise and damage.

3. High Water Pressure

Excessive water pressure can also lead to noisy pipes, causing them to vibrate and create humming or whistling sounds. High water pressure not only results in noise but can also put unnecessary strain on your plumbing system, potentially leading to leaks or other damage (such as burst pipes), especially if the water pressure regulator is faulty or absent.

Checking and regulating water pressure is essential to maintaining a quiet and functional plumbing system.

Solution: Adjust Water Pressure

High water pressure is not only a common cause of noisy pipes but can also lead to other plumbing issues, such as leaking taps and pipes and even burst pipes. To reduce noise and protect your plumbing system, it’s crucial to maintain water pressure within the recommended range, typically between 40 and 60 psi (pounds per square inch).

You can check your home’s water pressure using a pressure gauge attached to an outdoor tap. If the pressure is too high, installing a pressure-reducing valve can help regulate it. This valve can be adjusted to ensure that the water pressure is kept at a safe and quiet level.

When to Seek Professional Help

Noisy water pipes can be an annoyance, but they could also be a sign of underlying issues that require professional attention.

Here are some situations where it’s best to call in a plumber:

• Persistent noises: If you’ve tried basic fixes like adjusting water pressure or securing loose pipes, but the noises persist, it’s time to consult a professional. Persistent sounds can indicate a more serious issue such as worn-out components or pipe damage.
• Water hammer: If you’re hearing loud banging noises when you turn off taps or appliances, this could be a water hammer problem. As stated above, while some DIY solutions exist, persistent or severe water hammer often requires a plumber to install a water hammer arrestor or adjust pressure-regulating valves.
• Leaks or water damage: If you notice signs of water leaks, such as damp spots, discoloration or mould, the problem may go beyond noisy pipes. A plumber can identify and repair leaks, possibly using advanced technology such as a CCTV drain camera, before the leaks cause extensive damage.
• Low water pressure or fluctuating pressure: If water pressure suddenly drops or becomes inconsistent, it could indicate a drain blockage, pipe corrosion, or a pressure valve issue. A professional will have the tools and expertise to diagnose and resolve these problems.

When in doubt, it’s always better to err on the side of caution and call a professional plumber to assess the situation properly.

Keep Your Plumbing Quiet

Noisy water pipes can be more than just an annoyance; they may signal underlying issues within your plumbing system. By understanding the common causes and applying the appropriate solutions, you can restore peace to your home and prevent potential damage.

Whether it’s installing water hammer arrestors, securing loose pipes or adjusting water pressure, taking action is key. However, if the problem persists, don’t hesitate to seek professional help to ensure your plumbing is in top condition and to avoid more serious complications down the line.

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.