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Hot Water Cylinder Maintenance 101: How to Keep Your System in Top Condition


Hot water cylinder is a crucial component of any home’s plumbing system, providing hot water for cooking, cleaning, and bathing. While these systems are designed to be reliable and long-lasting, they still require regular maintenance to ensure they remain in top condition. In this blog post, we’ll discuss the basics of hot water cylinder maintenance and provide some tips on how to keep your system running smoothly for years to come.


Regularly Check the Pressure Relief Valve

One of the most important things you can do to maintain your hot water cylinder is to regularly check the pressure relief valve. This valve is designed to release excess pressure that can build up inside the cylinder, and if it’s not working properly, it can lead to serious problems such as leaks or even explosions.

To check the pressure relief valve, simply lift the lever or turn the knob to release some water. If the valve doesn’t release any water or only releases a small amount, it may be clogged and need to be cleaned or replaced.

Flush the Tank Annually

Over time, sediment and mineral deposits can build up inside the hot water cylinder, reducing its efficiency and potentially leading to damage. To prevent this, it’s a good idea to flush the tank annually.

To flush the tank, turn off the power or gas supply to the cylinder and connect a hose to the drain valve. Open the valve and let the water drain out until it runs clear. Then, close the valve and refill the tank.

Inspect the Anode Rod

The anode rod is a sacrificial component that helps protect the hot water cylinder from corrosion. Over time, the rod can become depleted and need to be replaced.

To inspect the anode rod, turn off the power or gas supply to the cylinder and remove the rod from the top of the tank. If it’s less than 1/2 inch thick or covered in calcium deposits, it’s time to replace it.

Check for Leaks

Leaks can develop in any part of a hot water cylinder system, from the tank to the pipes and fittings. To prevent leaks from causing serious damage, it’s important to check for them regularly.

Inspect the area around the cylinder for signs of water damage or leaks, such as wet spots or discoloration. If you notice any leaks, contact a professional plumber immediately to have them repaired.

Schedule Regular Professional Maintenance

While there are many things you can do yourself to maintain your hot water cylinder, it’s also important to schedule regular professional maintenance. A qualified plumber can inspect your system thoroughly, identify any potential problems, and make necessary repairs or replacements.

By following these simple tips, you can help ensure that your hot water cylinder remains in top condition and provides reliable hot water for years to come. Remember, regular maintenance is the key to keeping your system running smoothly and avoiding costly repairs or replacements in the future.