What To Do When Your Hot Water System Is Leaking

We all know how important it is to have your hot water working efficiently, but we don’t realise how much it is a part of our lives until our hot water system has an issue. Hot water is an essential part of our lives for most of our everyday tasks – from having a shower to washing the dishes!

A leaking hot water system should not be ignored, or put off until ‘later’. You should immediately take action when you notice a hot water heater leak – even a small problem now can quickly become a larger, more expensive issue later on.

Identifying the Source of the Leak

There are several places on your hot water system to check for a leak:

1. Pressure Relief Valve (PRV): A faulty pressure relief valve can lead to continuous leaks or significant water accumulation beneath the valve. While it’s normal for these valves to release small amounts of water occasionally, continuous leaking indicates damage and necessitates replacement.
2. Temperature Relief Valve: Similar to the PRV, this valve should not leak continuously.
3. Top or Bottom of the Tank: Leaks often indicate damaged internal components or high water pressure issues.
4. Connected Pipes: Check all pipes leading to and from your hot water system.
5. Pipe Joints: These are common weak points where leaks can occur.

Inspecting your hot water system regularly is important, even if you don’t notice any symptoms. This proactive approach can help catch problems early and prevent costly damage.

Turning Off the Water and Power Supply

When dealing with a leaking hot water system, it’s essential to turn off the water and power supply to prevent further damage and ensure your safety. Here’s how to do it:

• Locate the Mains Water Supply Valve: This valve is usually found near the water meter or where the water line enters your home. Turn the valve clockwise to shut off the water supply. This step is necessary to stop water flow and minimise potential water damage.
• Switch Off the Power for Electric Systems: Head to your circuit breaker or fuse box for electric hot water systems and switch off the power. To ensure the power is off, use a non-contact voltage tester. This will help you avoid electrical hazards while inspecting or repairing the system.
• Shut Off the Gas Supply for Gas Systems: If you have a gas hot water system, locate the gas supply valve and turn it clockwise to shut off the gas supply. This step is vital to prevent any gas leaks or potential explosions.

Following these steps, you can safely manage a leaking hot water system and prepare for further inspection or professional repair.

Common Causes of Hot Water System Leaks

Understanding why your hot water system is leaking can help you address the issue more effectively:

1. Age of the Unit: Over time, wear and tear can lead to various issues, including leaks.
2. Unit Damage: Physical damage to the tank or components can cause leaks.
3. Loose Fittings: Fittings may become loose due to age or improper installation.
4. Weather Damage: Harsh weather conditions can damage fittings, pipes, or the unit itself.
5. High Water Pressure: Excessive pressure can strain your system, leading to leaks. Installing a pressure reduction valve can help mitigate this risk throughout your home.
6. Hot Water Tank Leaking: Common causes include high water pressure, corrosion, and defective parts. Pay special attention to the sacrificial anode at the top of the tank, as it can be a frequent problem area.

Immediate Steps to Take When You Discover a Leak

If you find a leak in your hot water system, follow these steps to prevent further damage:

1. Identify the Leak Location: Carefully inspect your system to pinpoint where the leak is coming from. This information will be crucial for you and the plumber.
2. Turn Off the Water Supply: Locate the water shut-off valve for your hot water system and turn it off immediately. If you can’t find it, turn off the main water supply to your home.
3. Turn Off the Power or Gas: Switch off the power at your circuit breaker for electric systems. Turn off the gas supply before inspecting or working on the unit for gas systems.
4. Drain the Tank: Consider draining the tank if the leak is severe to prevent water damage. However, be cautious as the water may be extremely hot.
5. Check for a Leaking Pressure Relief Valve: Regularly operate the pressure relief valve to prevent leaks. If the valve leaks, it may be due to excessive pressure in the system, and replacement might be required if the leak persists.
6. Call a Professional Plumber: Contact a qualified plumber immediately for inspection and repair. Attempting DIY repairs on hot water systems can be dangerous and may void warranties.

Repair or Replace?

When deciding whether to repair or replace your leaking hot water system, consider the following factors:

• Age of the System: If your system is over 10 years old, replacement might be more cost-effective in the long run.
• Severity of the Leak: Minor leaks might be repairable, but significant leaks or tank damage often necessitate replacement.
• Frequency of Issues: If you’re experiencing frequent problems, it might be time for a new system.
• Energy Efficiency: Newer models are often more energy-efficient, potentially saving you money on utility bills.
• Hot Water System Technology: Advancements in hot water system technology may offer more economical and efficient alternatives that better suit modern lifestyles. Consider these evolving options before making a decision.

Safety Precautions

When working with a leaking hot water system, it’s crucial to take safety precautions to avoid injuries and further damage:

• Wear Protective Gear: Equip yourself with gloves and safety glasses to protect against sharp edges and hot water splashes. This simple step can prevent minor injuries from becoming major issues.
• Clear the Area: Ensure the area around the hot water system is free of any flammable materials or objects that water could damage. This helps create a safe working environment.
• Know Your Limits: If you’re uncomfortable with DIY repairs or the leak is severe, call a professional plumber. Attempting complex repairs without proper knowledge can be risky.
• Avoid DIY Repairs on Gas Systems: Never attempt to repair a gas hot water system yourself. Gas systems can be hazardous and even fatal if not handled correctly. Always rely on a qualified professional for gas-related issues.

The Importance of Getting a Plumber in

While it might be tempting to attempt repairs yourself, working with hot water systems can be dangerous due to high temperatures, pressure, and potential electrical or gas components. Always rely on a qualified plumber to:

• Accurately diagnose the issue
• Provide expert advice on whether to repair or replace
• Ensure all work is up to code and safe
• Maintain any existing warranties
• Diagnose and repair a leaking hot water tank, particularly issues with internal components like the pressure relief valve (PRV), and determine if a full replacement is necessary.

Don’t Delay – Act Today!

Remember, even a small leak can quickly escalate into a major problem, potentially causing significant water damage to your home. Acting quickly when you notice a leak can save you time, money, and stress in the long run.

Is your hot water system leaking? 

Have you noticed your hot water isn’t working as it should be? 

Don’t wait for the problem to worsen. At Canberra Plumbing and Drains, our team of highly skilled technicians is ready to help. We offer comprehensive hot water system repair and replacement services, ensuring your home’s hot water needs are met efficiently and safely.

Call our friendly team on 0474 488 899 to book your hot water system appointment today. We’re here to provide expert solutions and peace of mind for all your plumbing needs.