How to Drain a Gas Water Heater: A Comprehensive Guide in 7 Easy Steps
Is your gas water heater giving you trouble? Does it need to be drained for maintenance or repairs? Draining a gas water heater may seem daunting, but with the right instructions, it’s a relatively straightforward task. Follow these seven simple steps to drain your gas water heater safely and effectively.
1. Gather Your Tools and Safety Gear
Before you begin, ensure you have all the necessary tools and safety gear:
- Adjustable wrench
- Screwdriver
- Garden hose (at least 6 feet long)
- Bucket
- Rags
- Safety glasses
- Gloves
2. Turn Off the Gas Supply
Start by turning off the gas supply to the water heater using the gas valve located on the gas line. Rotate the valve clockwise until it’s fully closed.
3. Turn Off the Water Supply
Next, turn off the water supply by closing the cold water inlet valve located at the top of the water heater. You may need to use an adjustable wrench for this.
4. Open the Pressure Relief Valve
Locate the pressure relief valve on the side of the water heater. Slowly open it by turning it counterclockwise using a screwdriver. Water will start to flow out. Allow water to flow for a few minutes until it stops.
Source guides.brit.co
5. Attach a Garden Hose to the Drain Valve
Connect one end of the garden hose to the drain valve at the bottom of the water heater. Make sure the other end of the hose is directed into a bucket or drain. Open the drain valve by turning it counterclockwise using an adjustable wrench. Water will start to drain out.
6. Wait and Monitor
It will take some time for the water heater to drain completely. Allow all the water to drain out until the garden hose runs almost empty. Monitor the process throughout, ensuring the water flows smoothly and there are no leaks.
7. Close the Drain Valve and Reopen the Water Supply
Once the water has drained, close the drain valve by turning it clockwise. Then, reopen the cold water inlet valve to refill the water heater. Open the pressure relief valve again to allow any air trapped in the system to escape. Close the pressure relief valve once water starts flowing steadily.
Conclusion:
Draining a gas water heater is an essential maintenance task that can prevent costly repairs or malfunctions. By following these detailed steps, you can drain your water heater safely and effectively. Remember to always refer to the manufacturer’s instructions and prioritize safety when working on any gas appliances.
FAQ about Draining a Gas Water Heater
1. Why is it necessary to drain a gas water heater?
Answer: To prevent damage to the water heater and its components from freezing temperatures, sediment buildup, or when repairs are needed.
2. What safety precautions should I take before draining the water heater?
Answer: Turn off the gas supply, disconnect the electricity, and allow the water to cool to a safe temperature.
3. Where is the drain valve located?
Answer: Usually on the bottom of the water heater, near the cold water inlet pipe.
4. What tools do I need?
Answer: A sink or bucket, a garden hose, and a wrench to open the drain valve.
5. How do I open the drain valve?
Answer: Slowly turn the valve counterclockwise using a wrench. Some models may have a lever handle that you can pull up or turn.
6. How long will it take to drain the water heater?
Answer: Depending on the size of the water heater, it can take from 30 minutes to several hours.
7. How do I know when the water heater is empty?
Answer: Water will stop flowing from the drain valve. Check the top of the water heater to make sure no water is leaking from the overflow tube.
8. What do I do with the drained water?
Answer: Dispose of the water properly according to local regulations. It may contain sediment and minerals.
9. How do I refill the water heater?
Answer: Open the cold water inlet valve and turn on the gas supply. Allow the water heater to fill completely before reigniting the pilot light.
10. Do I need to flush out the sediment from the water heater?
Answer: Yes, sediment can accumulate at the bottom of the water heater over time. Flushing it out periodically helps prevent sediment buildup and improves water heater performance.
