Post By Admin
December 17, 2024
Hot water nodes are something you’ve likely heard of, but do you know how they truly work? If you’re aiming for a long-lasting hot water service, then the role of the node is something you should master.
In this blog post, we’ll dive into the mechanics behind the system to help you maximise its performance and lifespan. Ready to uncover the secrets? Let’s get started!
What is a Hot Water Anode?
A hot water system anode is a metal rod, usually made of magnesium or aluminium, that sits inside your hot water tank. Its job? To protect the tank from rust by attracting all the corrosive elements in the water.
With this tool, you’ll easily maintain the hot water system and keep it working like a charm. There are different types of anode hot water system available:
- Traditional anodes: These are solid rods, usually made of magnesium or aluminium, and provide reliable protection for most tanks.
- Segmented anodes: Made of multiple pieces, these are easier to install in tight spaces and perfect for tanks in small areas.
- Titanium power drive anodes: A modern, electric option that doesn’t corrode and offers long-lasting, low-maintenance protection.
The price ranges from $2.5 for traditional types to approximately $25 for titanium power drive anodes. Yes, that’s the best deal over there!
How Does It Work?
To understand how a gas hot water works, let’s break it down simply. The anode rod works through a process called electrolysis. Water naturally contains minerals and corrosive elements that can damage the tank over time.
The water heater anode, made of a more reactive metal like magnesium or aluminium, attracts these elements. Instead of rusting your tank, they attack the sacrificial anode water heater first.
Over time, the anode corrodes instead of your tank, keeping your hot water system safe and working efficiently.
4 Signs that You Should Replace Your Anode
Here are the key signs that it’s time to replace your anode:
- Hot water running out quickly. If your showers turn cold faster than usual, it might mean the anode is no longer doing its job. This happens because a worn-out anode can’t protect the tank, leading to faster corrosion and reduced efficiency.
- Rusty or discoloured water. As the sacrificial anode in your hot water system wears down, the tank’s lining becomes vulnerable, allowing rust to seep into your water supply.
- Metallic smell or taste. You might also notice a metallic smell or taste in the water, which is another clue that the anode needs attention.
- Visible corrosion on the anode. During inspections, if the anode looks heavily corroded or worn down, it’s time to replace it.
These signs can show up in different types of hot water systems, whether gas, electric, or solar. While the anode’s role is the same, its lifespan depends on water quality and system usage.
Pro tip: Check your anode every 3-5 years to keep your hot water system running efficiently and avoid unexpected breakdowns.
How to Replace Your Hot Water Anode?
Replacing your hot water anode is easier than it sounds! Follow these simple steps:
- Turn off the power or gas supply. For gas systems, switch off the gas supply. For electric systems, turn off the electricity at the breaker.
- Shut off the water supply. Locate the water inlet valve and close it to prevent water flow.
- Relieve the tank pressure. Open a hot water tap and let it run until the pressure in the tank reduces.
- Locate the anode. The anode is usually at the top of the tank, accessible through a hex nut.
- Unscrew the old anode. Use a socket wrench to carefully remove the anode. Be prepared for some resistance, as it may be tightly sealed.
- Inspect and replace. Check the old anode for wear and corrosion. Insert the new anode into the same slot and tighten it securely.
- Turn everything back on. Reopen the water supply, turn the power or gas back on, and let the tank fill before testing the system.
There you are. You are done!
FAQ about Hot Water Anode
How often should you replace an anode rod in a hot water heater?
Ideally, you should replace the anode rod every 3-5 years, depending on water quality and system usage. Hard water or heavy usage may wear it down faster. Replacing an anode rod is easy, as explained above, and it’s a simple way to extend the lifespan of your hot water tank.
How long does a hot water tank anode usually last?
A hot water tank anode typically lasts 3-5 years, depending on the type and your water quality. But if you notice your anode corroding faster than that range, don’t wait any longer. Just replace it promptly to avoid more complicated issues like tank leaks or rust.
Conclusion
Replacing your hot water anode is easy and undeniably cheap, yet it’s one of the best ways to prolong the life of your hot water system. If you’re facing other plumbing issues, don’t hesitate to call Neighbourhood Plumbing.
We deliver professional, reliable service and charge by the job—not the hour! Let us handle your plumbing needs with expertise and transparency.
About the Author
From unclogging the toughest drains to repairing leaking toilets, Ricky is a seasoned plumber who has brought his craftmanship to homes across Melbourne. He is passionate about sharing plumbing tips just as much as he is about fixing your plumbing issues. So, when your taps or pipes begin leaking, you know who to call.
