Why Does My Hot Water Tap Sound Like A Tea Kettle? The Answer Might Surprise You

“Why does my hot water tap spit air?” is a common question that can be frustrating to deal with. Air in the hot water line can cause a variety of problems, including:

• Inconsistent water flow
• Sputtering or spitting water
• Reduced water pressure
• Noisy pipes

Understanding the causes of air in the hot water line is the first step to finding a solution. In this comprehensive guide, we will explore the various reasons why your hot water tap may be spitting air and provide effective fixes to resolve the issue.

Causes of Air in the Hot Water Line

1. Air Pockets in the Water Heater: When the water heater is not filled properly, air pockets can form inside the tank. These air pockets can be released when the hot water tap is opened, causing the water to spit or sputter.

2. Leaks in the Water Line: Leaks in the water line, especially at joints or connections, can allow air to enter the system. When the tap is turned on, the air is pushed out, resulting in spitting water.

3. Low Water Pressure: If the water pressure in your home is too low, it can create a vacuum in the water line, drawing air into the system. This can cause the hot water tap to spit air when it is turned on.

4. Faulty Pressure Relief Valve: The pressure relief valve on the water heater is designed to release excess pressure. If the valve is not working properly, it can allow air to enter the system, causing the tap to spit air.

5. Water Heater Sediment Buildup: Over time, sediment can accumulate at the bottom of the water heater tank. This sediment can clog the water outlet, restricting water flow and creating air pockets that can cause the tap to spit air.

Troubleshooting and Fixes

1. Check the Water Heater: Ensure that the water heater is filled properly and there are no air pockets inside the tank. If necessary, drain and refill the water heater according to the manufacturer’s instructions.

2. Inspect the Water Line for Leaks: Examine the water line for any visible leaks, especially at joints and connections. Tighten any loose connections or replace damaged pipes to prevent air from entering the system.

3. Increase Water Pressure: If the water pressure in your home is too low, you may need to adjust the pressure regulator. Consult a qualified plumber to determine the appropriate water pressure for your home and make the necessary adjustments.

4. Replace the Pressure Relief Valve: If the pressure relief valve is faulty, it should be replaced by a qualified plumber. This will prevent air from entering the system and ensure proper water flow.

5. Flush the Water Heater: Flushing the water heater can help remove sediment buildup that may be clogging the water outlet. Follow the manufacturer’s instructions for flushing the water heater to restore proper water flow and eliminate air pockets.

Other Considerations

• Water Hammer: Water hammer occurs when water flowing through the pipes is suddenly stopped, creating a pressure surge that can cause the pipes to vibrate and make noise. This can also introduce air into the system, resulting in spitting water from the hot water tap.

• Pump Issues: If your home has a water pump, it may be malfunctioning and introducing air into the water line. Contact a qualified plumber to inspect and repair the pump as needed.

The Bottom Line: Resolving Air in Hot Water Taps

By identifying the underlying cause of air in your hot water line, you can effectively troubleshoot and fix the issue. Whether it’s a simple adjustment to the water heater or a more complex leak repair, addressing the problem promptly will restore consistent water flow and eliminate the spitting and sputtering from your hot water tap.

Questions You May Have

1. Why does my hot water tap spit air when I turn it on?

Air in the hot water line can cause the tap to spit air when it is turned on. This can be caused by air pockets in the water heater, leaks in the water line, low water pressure, a faulty pressure relief valve, or sediment buildup in the water heater.

2. How can I fix a hot water tap that spits air?

To fix a hot water tap that spits air, you can check the water heater for air pockets, inspect the water line for leaks, increase water pressure, replace the pressure relief valve, or flush the water heater to remove sediment buildup.

3. Can air in the hot water line damage my plumbing?

Persistent air in the hot water line can lead to corrosion and damage to the pipes and fixtures over time. It is important to address the issue promptly to prevent costly repairs.