What To Know
- A faulty pressure relief valve, typically located on the hot water heater, can allow air to enter the water system.
- Sudden changes in water pressure, such as when a large appliance turns on or off, can cause air to be drawn into the hot water lines.
- Air in hot water pipes can contribute to water hammer, a phenomenon where water flowing through pipes creates a banging or knocking sound.
Imagine turning on your hot water tap, expecting a soothing stream of warm water, only to be greeted with an unexpected sputtering and spitting sound. This perplexing phenomenon, often accompanied by erratic water flow and temperature fluctuations, can be a source of annoyance and concern. If you’re wondering why your hot water tap is behaving this way, you’re not alone. This blog post delves into the underlying causes and provides practical solutions to help you resolve this issue.
Causes of Air in Hot Water Taps: Identifying the Culprits
1. Faulty Pressure Relief Valve:
- A faulty pressure relief valve, typically located on the hot water heater, can allow air to enter the water system.
- This occurs when the valve fails to release excess pressure, causing air bubbles to accumulate and be released through the hot water tap.
2. Leaking Pipes:
- Leaks in the hot water pipes can introduce air into the system.
- As water flows through the leaky section, air is drawn in, resulting in sputtering and spitting from the tap.
3. Improperly Installed Water Heater:
- If the water heater is not installed correctly, it may not be properly sealed, allowing air to enter the system.
- This can happen during the initial installation or due to shifting pipes over time.
4. Sediment Buildup:
- Over time, sediment and mineral deposits can accumulate in the hot water heater and pipes.
- These deposits can create pockets of air that are released when hot water flows through the system.
5. Fluctuating Water Pressure:
- Sudden changes in water pressure, such as when a large appliance turns on or off, can cause air to be drawn into the hot water lines.
- This can result in temporary sputtering and spitting from the tap.
Solutions to Eliminate Air from Hot Water Taps: Restoring Smooth Water Flow
1. Inspect and Replace the Pressure Relief Valve:
- Check the pressure relief valve for proper operation. If it’s faulty, replace it with a new one.
- This should eliminate air entering the system from the water heater.
2. Repair Leaky Pipes:
- Identify and repair any leaks in the hot water pipes.
- Use appropriate sealing materials and techniques to ensure a tight seal, preventing air from being drawn in.
3. Ensure Proper Water Heater Installation:
- If the water heater was recently installed, have a qualified plumber inspect the installation to ensure it’s done correctly.
- If the water heater has been in place for a while, check for loose connections or seals that may have deteriorated over time.
4. Flush the Water Heater:
- Flushing the water heater can help remove sediment and mineral deposits that may be causing air pockets.
- Follow the manufacturer’s instructions for flushing the water heater to ensure proper maintenance.
5. Install an Air Trap:
- An air trap can be installed on the hot water line to collect and release accumulated air.
- This prevents air from reaching the tap and causing sputtering and spitting.
Preventive Measures: Avoiding Air in Hot Water Taps
1. Regular Water Heater Maintenance:
- Schedule regular maintenance for your water heater to ensure it’s operating efficiently and free of sediment buildup.
- This can help prevent air from entering the system.
2. Monitor Water Pressure:
- Keep an eye on your home’s water pressure. If you notice sudden fluctuations, have a plumber inspect the plumbing system to identify and resolve the cause.
3. Insulate Hot Water Pipes:
- Insulating hot water pipes can help maintain a consistent water temperature, reducing the likelihood of air bubbles forming.
4. Use Quality Plumbing Materials:
- When replacing pipes or fittings, opt for high-quality materials that are less prone to leaks and deterioration.
5. Hire Qualified Plumbers:
- For any plumbing work, including water heater installation and repairs, hire licensed and experienced plumbers to ensure proper workmanship.
Beyond the Basics: Additional Insights
- Air in Hot Water Taps and Water Hammer:
- Air in hot water pipes can contribute to water hammer, a phenomenon where water flowing through pipes creates a banging or knocking sound.
- Eliminating air from the system can help reduce water hammer.
- Safety Precautions:
- When working on plumbing systems, always take necessary safety precautions, such as turning off the water supply and using appropriate tools and protective gear.
- DIY vs. Professional Help:
- While some solutions, like flushing the water heater, can be DIY projects, it’s often best to consult a professional plumber for more complex issues.
Quick Answers to Your FAQs
Q: Why does my hot water tap spit air only when I turn it on?
A: Air pockets can form in the pipes when the hot water tap is not in use. When you turn on the tap, the air is released, causing sputtering and spitting.
Q: Can air in hot water taps cause damage to appliances?
A: While air in hot water taps is generally not harmful to appliances, it can reduce their efficiency and lifespan.
Q: How can I tell if the pressure relief valve is faulty?
A: Signs of a faulty pressure relief valve include water leaking from the valve, hissing or gurgling sounds, and increased water pressure.
