If your hot water tank leaks, it needs to be repaired ASAP. There are plenty of reasons a tank might leak, such as a metal or plastic shell crack or corrosion from water chemicals. The good news is that some simple fixes that can help with hot water repair in Hornsby and keep your property running smoothly and reliably over time.

Check For Cracks In the Tank

If you see a crack in your hot water tank, get it repaired immediately. A cracked tank can lead to leaks and potentially even damage to the cast iron plumbing. If you have a leaky tank, do not use hot water until professional plumber repairs it.

Servicing The Anode Rod

You may have heard about the sacrificial anode rod, but what is it? The sacrificial anode rod is a metal cylinder that sits at the bottom of your water tank and protects from corrosion by oxidising or corroding in place. It does this by absorbing any acidic water that comes into contact with it. If you’re not sure whether your tank has one, take a look at these signs:

  • There are holes on either side of your tank, so there’s no need for one.
  • Your water tastes metallic when you taste it, therefore indicating possible metal contamination.

So how do you know if you need to service your sacrificial anode rod? Well, first of all, you should never ignore any signs! Secondly, if you still don’t feel comfortable servicing after taking care of these two things, then call the professionals immediately so they can take care of the hot water repair immediately!

Repairing leaks in the tank’s drain valve

The drain valve is the part of your water tank that allows water to flow into your house. It’s often made of plastic, which can wear out over time. If this happens, you may notice that there’s a constant gurgling when you turn on the faucet or run a shower for it to work correctly.

If this is true for your home and it cannot be repaired by yourself, then you’ll need to replace it as soon as possible so that leaks will not occur again.

Check The Pressure Relief Valve

The pressure relief valve is a very important part of your hot water system. It protects the tank from over-pressurization and allows you to check that it has enough pressure before opening that door. If you have a leaky tank, it could be because the pressure relief valve isn’t working correctly.

The first thing to do if this is your problem is to ensure that there’s no water in the tank. If there has been since installation, then ensure its seals are intact by removing any debris or rust using an air compressor with a hammer attachment (not recommended for aluminium tanks). Next, open up each individual valve by turning counterclockwise until fully opened; then reconnect each one individually using their corresponding fittings if necessary; this will depend on how old they are. Finally, close tightly again with two bolts above and below where they meet inside their respective sections of pipework.


We hope you’re better equipped to deal with leaky hot water repair in Hornsby. As we’ve discussed, there are many different causes for water leaks in tanks and pressure relief valves, but they all have one thing in common: they can be fixed with simple home repairs. The most important thing is to make sure the repairs are done correctly by someone qualified who has experience working on similar systems.


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