Is Your Hot Water System Leaking? Here’s What to Do
A leaking hot water system is more than just a minor annoyance − it can lead to costly damage and higher water bills if not addressed promptly. Whether you're dealing with a slow drip or a more serious flood, taking quick action is key to minimising the impact.
But don’t worry; you don’t need to be a plumbing expert to handle the basics. In this guide, we’ll walk you through the essential steps to take when you notice your hot water system leaking.
From identifying where the leak is coming from to knowing when it’s time to call in a professional, we’ve got you covered. By following these simple steps, you’ll be able to protect your home, save money, and ensure your system gets the right fix. Let’s get started on what you should do when your hot water system springs a leak.
Identifying the Source of the Leak
When you first notice a leak from your hot water system, it’s important to identify exactly where it’s coming from. This will help you determine whether it’s a quick fix or something that needs professional attention. Start by inspecting the most common areas where leaks occur.
Check the pressure relief valve − this valve can often leak due to excess pressure in the tank. Next, take a look at the connections, especially where pipes meet the tank. Loose or corroded fittings can easily cause water to seep out.
Another area to check is the tank itself. Over time, hot water tanks can corrode, leading to cracks or holes that leak water. If the leak is coming from the bottom of the tank, it might indicate a more serious issue like internal corrosion.
If the leak is coming from taps or your shower fixture, it is not the fault of your hot water system.
Finally, make sure the leak isn’t from surrounding pipes or fittings that might be mistaken for the system itself. Identifying the exact source will help you decide on the next step to take.
Turn Off the Water and Power Supply
Once you’ve identified a leak in your hot water system, the first thing to do is turn off both the water and power supply to prevent further damage. Start by locating the cold-water shutoff valve, which is typically found at the top of the water heater.
Turn the valve clockwise to stop the flow of water into the tank. This will help prevent more water from leaking out and flooding your space.
Next, it’s crucial to turn off the power supply to the system. If you have an electric hot water system, head to your circuit breaker and switch off the power. For gas systems, turn off the gas supply using the dedicated shutoff valve.
Shutting off the power ensures that the system doesn’t continue heating, which could be dangerous if water is leaking. By cutting off both water and power, you’ll create a safe environment while you assess the next steps or wait for professional help.
Assess the Severity of the Leak
Before deciding on your next steps, it’s important to assess how severe the leak is. Some leaks can be handled easily, while others may require immediate professional help.
Here’s how to gauge the situation:
- Small drips: If you notice a slow, occasional drip from a valve or fitting, the issue might be minor. These leaks can often be temporarily fixed with plumber’s tape or by tightening connections.
- Pooling water: If there’s a small puddle of water under the tank, the leak might be more serious. This could indicate a problem with the tank or internal components, and you’ll likely need a plumber to inspect it.
- Constant flow: If water is continuously flowing from the tank or pipes, it’s a sign of a significant issue. Shut off the water supply immediately and call a plumber, as this could cause major water damage.
- Corrosion or rust: If you see rust or corrosion around the leak, it could mean your system is deteriorating from the inside and might need replacement soon.
Assessing the leak will help you determine whether it’s a quick fix or a more urgent problem.
Temporary Fixes You Can Try
If you notice a leak in your hot water system and can’t get a plumber right away, there are a few temporary fixes you can try to minimise damage. Start by placing a bucket or towels under the leak to catch any dripping water and prevent water damage to your floors.
For small leaks from joints or connections, you can use plumber’s tape or pipe sealant to temporarily stop the water from escaping. Simply wrap the tape around the leaky area to create a watertight seal.
If the leak is coming from a crack in a pipe or the tank, an epoxy putty can offer a short-term solution. Apply the putty directly over the crack, and it should harden, temporarily stopping the leak.
While these fixes won’t last forever, they can buy you some time until a professional plumber can inspect and repair the system. Just remember, these are only temporary measures − getting a proper fix is key to avoiding long-term damage.
When to Call a Professional
While minor leaks can sometimes be managed with temporary fixes, there are certain situations where calling a professional plumber is essential. Whether you’ve got a storage tank system, an instantaneous system or a heat pump hot water system, there are times when you need a fully qualified plumber.
Here are key signs it’s time to get expert help:
- Large or continuous leaks: If water is pouring out or leaking steadily, it’s beyond a DIY fix. Shut off the water and power, then call a professional immediately to prevent serious damage.
- Leaks from the tank itself: If the leak is coming from the body of the tank, it often means there’s internal corrosion. A plumber can assess whether the tank needs repair or replacement.
- Signs of rust or corrosion: Rust around the tank or pipes is a red flag that your system may be deteriorating from the inside. This is typically a sign of more severe damage that requires professional attention.
- Hot water supply issues: If your hot water system isn’t producing hot water or is inconsistent, alongside the leak, it’s likely an internal problem that needs a trained plumber to fix.
Calling a professional plumber ensures the problem is correctly diagnosed and repaired, saving you from costly issues down the line.
Preventing Future Leaks
Preventing leaks in your hot water system can save you from unexpected repairs and costly water damage. Regular maintenance is the key to keeping your system in good shape and avoiding future leaks. Start by scheduling annual professional inspections. A plumber can check for signs of wear and tear, like corroded pipes or faulty valves, and address minor issues before they turn into major problems.
Another important step is to regularly inspect your system yourself. Look for any signs of rust, corrosion, or moisture around the tank and connections. Catching these early can prevent leaks from developing. Additionally, make sure your system’s pressure relief valve is functioning properly − too much pressure can cause leaks over time.
Finally, consider installing a water softener if your home has hard water. The minerals in hard water can build up in the system and cause corrosion, leading to leaks. By taking these preventative measures, you can extend the life of your hot water system and avoid the hassle of future leaks.
Take Quick Action
A leaking hot water system can be stressful, but taking quick action can prevent serious damage. By identifying the source, turning off the water and power, and trying temporary fixes, you can manage the situation until a professional plumber arrives.
Remember, if the leak is large or coming from the tank itself, it’s best to call an expert to ensure the issue is properly resolved. With regular maintenance and inspections, you can also reduce the risk of future leaks and keep your hot water system running smoothly for years to come. Don’t wait − take action at the first sign of trouble.
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 Cyber Plumbers’ Terms & Conditions here.
