The gurgling water heater is a common issue that many homeowners face. It not only creates annoying noise, but it can also indicate an underlying problem with your water heater. Ignoring gurgling sounds from your water heater can lead to more serious issues, such as leaks or complete unit breakdowns.

How to Fix Gurgling Water Heater

Fortunately, fixing a gurgling water heater is not difficult and can be done with a few simple steps. In this guide, we will discuss the common causes of gurgling water heaters and how to fix gurgling water heater and prevent it from happening in the future.

Understanding the Problem of Gurgling Water Heater

Before we dive into the steps to fix a gurgling water heater, it is important to understand why this issue occurs in the first place. Here are some of the common causes of gurgling water heaters:

1. Sediment Buildup – Minerals and debris can accumulate at the bottom of your water heater tank over time. This buildup can cause gurgling sounds as the water tries to push through it.

2. Low Water Pressure – If the water pressure in your home is too low, it can cause air to get trapped in your water heater tank, leading to gurgling noises.

3. Faulty Dip Tube – The dip tube directs cold water to the bottom of the tank, where it can be heated. If it becomes cracked or broken, it can disrupt the water flow and cause gurgling sounds.

4. Loose Pipes – Sometimes, gurgling sounds can be caused by loose pipes that are vibrating against each other or the wall.

5. Condensation – In some cases, condensation can form outside the water heater tank and drip down onto the burner, causing a gurgling noise as it evaporates.

Supplies You Will Need to Fix Gurgling Water Heater

  1. Garden hose
  2. Bucket or drain pan
  3. Wrench or pliers
  4. Vinegar (optional)
  5. Rags or towels
  6. Replacement dip tube (if needed)
Bucket or Drain Pan

Step-by-step Guidelines on How to Fix Gurgling Water Heater

Step 1: Turn off the Power and Water Supply

Before beginning any maintenance on your water heater, it is important to first turn off the power and water supply. You can simply turn off the gas supply valve for gas water heaters. If you have an electric water heater, locate the circuit breaker for the unit and switch it off. Next, shut off the cold water supply by turning the valve clockwise. This will prevent any new water from entering the tank while you are working on it.

Step 2: Drain the Water Heater Tank

Attach a garden hose to the drain valve located at the bottom of the water heater tank. Place the other end of the hose into a nearby floor drain or outside where it can safely drain. Open the valve and allow all the water in the tank to drain. This will help flush out any sediment or debris that may be causing the gurgling sounds. If the water appears discolored or has a foul odor, add a few cups of vinegar to help remove any mineral buildup.

Step 3: Inspect and Clean the Dip Tube

Once all of the water has drained out, use a wrench or pliers to unscrew the cold water inlet pipe on top of the tank. You should be able to pull out the dip tube and inspect it for any cracks or breaks. If you notice any damage, replace the dip tube with a new one.

If it appears to be in good condition, use a stiff brush and hot water to clean out any sediment or debris that may have accumulated inside. Make sure to also clean the opening where the dip tube was attached. Once clean, reattach the dip tube and cold water inlet pipe.

Step 4: Check for Loose Pipes

Use a Wrench or Pliers

While you have access to the water heater, check for any loose pipes that could be causing the gurgling sounds. Use a wrench or pliers to tighten any loose connections. While this may not cause the gurgling, it is still important to ensure all pipes are secure to prevent future issues. Make sure to also check the drain valve and pressure relief valve to ensure they are tightly closed. If they are leaking, you may need to replace them.

Step 5: Refill and Test the Water Heater

Once all the steps above have been completed, close the drain valve and turn on the cold water supply. Let the tank fill completely before turning on the power or gas supply. Once everything is back on, run hot water from a faucet in your home to test the water heater. Listen for any gurgling sounds and monitor the unit closely for any leaks. This should fix the issue of the gurgling water heater.

Following these steps will not only help you fix a gurgling water heater, but it can also prevent future issues and extend the lifespan of your unit. Remember to regularly flush out your water heater tank to remove any buildup and check for any loose pipes or parts.

If you continue to experience gurgling sounds from your water heater after following these steps, it may be time to call a professional plumber for further inspection.  So, take care of your water heater, which will continue providing you with hot water without any unwanted noises. Happy fixing! 

Additional Tips and Tricks to Fix Gurgling Water Heater

Turning Off the Cold Water Supply
  1. If the above methods do not work, try turning off the cold water supply to your water heater and draining it completely. This can help remove any build-up or sediment that may have accumulated in your water heater.
  2. Regularly flushing out your water heater can prevent gurgling and other issues from occurring. Flustering your water heater at least once a year is recommended to keep it working efficiently.
  3. Check the temperature setting on your water heater and adjust accordingly. If the temperature is set too high, it can cause excess pressure in the tank, leading to gurgling noises.
  4. Insulate your water heater with a blanket or insulation kit. This can help reduce heat loss and prevent the water from overheating, which can also contribute to gurgling noises.
  5. Consider installing a water softener if your area has hard water. Hard water can cause mineral buildup in your water heater, leading to gurgling and other issues. A water softener can help prevent this problem.
  6. If you have an older water heater, it may be time for a replacement. Over time, sediment and build-up can cause damage to your water heater, leading to gurgling noises and other issues. Consider investing in a new, more efficient water heater.
  7. Regular maintenance and inspection by a professional plumber can help identify and prevent potential issues with your water heater before they become major problems.
  8. If you are experiencing frequent gurgling sounds from your water heater, it may be a sign of a more serious issue. In this case, it is best to consult a professional plumber for proper diagnosis and repair.
  9. Make sure your water heater is the appropriate size for your household needs. An undersized water heater can lead to excess pressure and gurgling noises.
  10. Finally, always follow manufacturer instructions for operating and maintaining your water heater to avoid potential issues and ensure longevity.
An Undersized Water Heater

By following these additional tips and tricks, you can effectively fix gurgling noises from your water heater and ensure it continues to work efficiently. Remember to maintain and inspect your water heater regularly to prevent any future problems. If you are unsure or uncomfortable with troubleshooting your water heater, it is always best to consult a professional plumber for assistance.  So, take care of your water heater, which will continue to provide you with hot water for all your needs. Happy fixing! 

Things You Should Consider to Fix Gurgling Water Heater

  1. The first thing you should consider when fixing a gurgling water heater is the age of your unit. As water heaters age, sediment can build up in the tank and cause noises like gurgling or popping. If your water heater is over ten years old, replace it with a newer model.
  2. Another factor to consider is the type of water you have in your area. Hard water with high mineral content can cause more sediment buildup, leading to gurgling noises in the tank. Installing a water softener or using a descaling agent can help prevent this issue.
  3. It’s also important to check the temperature setting on your water heater. If it’s set too high, it can cause excess pressure and lead to gurgling noises. The ideal temperature for a water heater is between 120-140 degrees Fahrenheit.
  4. A malfunctioning or damaged heating element can also cause gurgling in your water heater. If you have an electric water heater, it’s important to check the elements regularly and replace them if necessary.
  5. Another potential culprit for gurgling noises is a faulty or malfunctioning T&P (temperature and pressure) relief valve. This valve is designed to release excess pressure from the water heater, but if it’s not functioning properly, it can cause gurgling noises.
  6. In some cases, a gurgling water heater may be caused by air bubbles trapped in the tank. This can happen during installation or after repairs have been made. To fix this issue, try draining and flushing the tank to release any air bubbles.
  7. If you have a gas water heater, it’s important to check the burner and pilot assembly for any clogs or buildup that may be causing gurgling noises. Regular maintenance of these components can help prevent this issue.
  8. Finally, if you’ve tried all the above solutions and your water heater is still making gurgling noises, it may be time to call a professional plumber. They can diagnose the issue and make any necessary repairs or replacements.
Release Excess Pressure From the Water Heater

Following these considerations can help prevent and fix gurgling noises in your water heater. Regular maintenance and upkeep of your unit can also extend its lifespan and save you from costly repairs or replacements in the future.

Remember to always follow safety precautions when working on your water heater, and if you’re unsure about anything, consult a professional for assistance. Don’t let those gurgling noises go unchecked, as they could be a sign of a larger issue that needs to be addressed.

By taking the time to properly maintain and care for your water heater, you can ensure it continues to provide efficient and reliable hot water for your daily needs.  So keep these tips in mind and enjoy a quiet and functioning water heater for years to come.

Troubleshooting Common Issues to Fix Gurgling Water Heater

1. Sediment Buildup:

Over time, sediment and minerals can build up at the bottom of your hot water tank. This creates a barrier between the burner and the water, causing it to heat unevenly and creating gurgling noises. You will need to drain and flush your water heater to fix this issue.

Need to Drain and Flush Your Water Heater

This involves turning off the power or gas supply to your water heater, attaching a hose to the drain valve at the bottom of the tank, and draining out all the water until it runs clear. This process should be done at least once a year to prevent sediment buildup and maintain the efficiency of your water heater.

2. Air in the Pipes:

Air in the pipes is another common cause of gurgling noises from your water heater. This can happen when you turn off the water supply to your home, such as during plumbing repairs or a leak. When the water supply is turned back on, air can become trapped in the pipes, causing a gurgling sound. To fix this issue, you can simply turn on all the faucets in your home and let the water run until it flows smoothly without any trapped air. This should release any air bubbles and stop the gurgling noise from your water heater.

3. Loose Heating Elements:

Loose heating elements can also cause gurgling noises if you have an electric water heater. Over time, these elements can become loose and create vibrations when the water is being heated, resulting in a gurgling sound. To fix this issue, you must turn off the power supply to your water heater and carefully tighten any loose heating elements using a wrench. If the noise persists after tightening, it may be time to replace the heating elements.

4. High Water Pressure:

High water pressure can also cause gurgling noises from your water heater. When the pressure is too high, it can create turbulence in the tank, leading to air bubbles or vibrations that produce a gurgling sound. To fix this issue, you can install a pressure-reducing valve on your main water line to regulate the water pressure. It is also important to regularly check and adjust your water pressure to prevent future issues. 

5. Faulty Dip Tube:

A dip tube is a small plastic tube that directs cold water to the bottom of your water heater tank for heating. If this tube becomes cracked or broken, it can cause gurgling noises as the cold water mixes with the hot water at the top of the tank. To fix this issue, you must turn off the water supply to your water heater, drain the tank, and replace the faulty dip tube. It is recommended to have a professional plumber handle this repair.

Following these troubleshooting steps can help you fix gurgling noises coming from your water heater. It is important to promptly address any issues with your water heater to avoid potential damage and ensure its efficient operation. Regular maintenance and inspections can also prevent common issues and extend the lifespan of your water heater.

Remember to always prioritize safety and consult a professional if you need clarification on any repairs or maintenance tasks. With proper care and attention, your water heater can continue providing you with hot water for years.  So, if you notice any unusual noises or performance issues with your water heater, don’t hesitate to resolve the problem immediately. Your future self will thank you!  Happy troubleshooting!

Consult a Professional if You Need

Frequently Asked Questions

What Causes a Water Heater to Make Gurgling Noises?

There are several possible causes for a water heater to make gurgling noises, including sediment buildup in the tank, air bubbles in the pipes, or a malfunctioning heating element. These issues can cause improper heating and circulation of water within the tank, resulting in strange noises.

How Do I Know if My Water Heater Needs to Be Fixed?

If your water heater is making gurgling noises, it is a sign that something is not working properly. Additionally, if you notice that your hot water is not as hot as usual or there is sediment in the water, these are indications that your water heater may need to be fixed.

Can I Fix My Water Heater on My Own?

While some basic maintenance tasks, such as flushing the tank, can be done by homeowners, it is not recommended to attempt fixing a water heater on your own if you are not experienced in plumbing or appliance repair. It is best to seek the help of a professional to ensure the problem is properly diagnosed and fixed.

How Much Does It Cost to Fix a Gurgling Water Heater?

The cost of fixing a gurgling water heater can vary depending on the cause of the issue and the extent of repairs needed. Generally, fixing a minor problem is more affordable than replacing the entire unit. It is best to get quotes from multiple professionals before making a decision.

What Can I Do to Prevent Gurgling Noises in My Water Heater?

To prevent gurgling noises in your water heater, it is important to maintain your unit regularly by flushing the tank and checking for sediment buildup. You can also install a water softener or filtration system to reduce mineral deposits in the tank. Having your water heater inspected by a professional annually is also recommended.

Conclusion

Knowing how to fix gurgling water heater is important for the proper functioning and longevity of your hot water supply. Regular maintenance, seeking professional help when needed, and being aware of potential issues can help prevent gurgling noises and ensure your water heater continues to work efficiently.

If you are experiencing gurgling noises or other issues with your water heater, it is best to address them sooner rather than later to avoid costly repairs or replacements. By following these tips and staying on top of maintenance, you can ensure your water heater works properly and provides hot water for your daily needs.  So, make sure to take care of your water heater to avoid any inconveniences in the future.  Happy heating!

Jennifer Branett

writer

Jennifer Branett Expert with over 15 years of on experience.

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