How to Fix a Hot Water System Leak – A Beginner’s Guide

Fix a Hot Water System Leak

How to Fix a Hot Water System Leak – A Beginner’s Guide

Leaks from your hot water system are far from a simple issue. If this goes unnoticed and untreated, you’ll have a big problem in your hands. Thankfully, we’re providing a handy guide to show you the right steps you should take to fix it.

How to Fix Your Hot Water System Leaks

Not all leaks come from physical damage over time. Sometimes, it’s pressure and corrosion that has more impact than blunt force. For example, rusting in the water heater’s tank can lead to fractures. This allows leaks to seep through deteriorating surfaces. Another potential reason for leaks is loose pipe fittings, leading to water loss when your system is in use.

There’s no simple way to fix a hot water leak, which is why you need to be careful with the steps below. If you think you’re capable of putting in some elbow grease to do the job, you might save yourself the trouble of hiring a plumber.

If your hot water system is experiencing leaks, here’s a three-step guide to fix it.

Step #1: Identify the Source

First, identify the cause of the water leak so you can see if it’s a corrosion or pressure issue. This should tell you what parts you’ll need to handle and what tools you should bring to fix it.

  • Leaks from the T&P Valve: You should lift the lever on the valve to release potential blockages. This might shake off anything that’s causing the leak.
  • Leaks from the Top: It could be due to loose pipe fittings. On the other hand, it could be a compromised tank or cold water inlet valve.
  • Leaks from the Bottom: Complications may be present in the drain valves or the T&P valve, as mentioned above.

Step #2: Turn Off the Water Supply

The tap is usually located at the bottom of the system. Before performing your repairs, it’s important to shut off the water supply to realign pipes or treat leaks or cracks. Since the repair process can take a while, don’t forget to stock up water in bottles and buckets as a temporary water source for washing dishes and other activities.

Step #3: Perform Replacements and Repairs

Small repairs usually involve applying a sealant or plumber’s tape to secure loose connections. However, it’s important to remember that these repairs will only be stop-gap solutions. For this reason, you might want to get a professional opinion to solve the root cause of your hot water system’s problems.

You must also gauge if performing repairs will be a better investment than replacing your unit. Sometimes, regularly repairing your hot water system will incur more costs than buying a new one. If it’s time to finally replace your unit, don’t hesitate to do so.


While the steps above may seem simple enough to do, you’ll see that it’s much easier read than done. For this reason, you may want to contact professional plumbers for help. Doing so will ensure that no additional damage will affect your hot water system, and it’ll receive an accurate diagnosis and treatment as well. Unless you want to install a new system altogether, it’s best to reach out to our professional plumbers.

If you’re looking for a Fairlight-based plumber to give your hot water system a look, our team can help. At Plumd in Plumbing, we have over 15 years of industry experience in The Northern Beaches, making us experts to local establishments and plumbing policies. Call us at 0426 483 191, and our expert plumbers will attend to your needs!

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