Tools and Materials
Know the Reason for Air in Water Lines
Before getting air out of water lines, you must inspect the reason why there is air in the water lines. Follow these steps to do the initial checks:
Turn off the water heater and unplug it. Ensure that the water inside comes down to room temperature. Now, check if the heater’s valves are tight and well-secured.
Look for any signs of corrosion or sediment buildup on the anode rod. Refer to the heater’s manufacturer manual to access the anode rod inside the heater.
The damaged part could be reacting with water and forming air bubbles, leading to air in water lines. Get that specific part replaced by a professional or buy a new water heater.
Wear heat-resistant gloves and safety goggles when checking the water heater.
Access your water tank and look for any malfunctioning valves, leaks or rust. Also, check if the pressure gauge reading is within the recommended limits. If not, drain the excess water and maintain the pressure. If you notice any leaks or signs of wear and tear, consider replacing the water tank with a new one.
If you use a well pump, check for any signs of wear and tear on the motor and casing. This can allow air to enter the water system. Regularly servicing your well pump can prevent air infiltration. Also, check if the pump is of optimal size and capacity for the well. Replace it with the correct-sized pump to prevent the chances of air getting into the water lines.
5 Steps on How to Get Air Out of Water Lines
If there is no issue in the initial checks above, follow the below steps to remove air from water lines:
Locate the main shut-off valve for your home’s water supply. Close this valve and while at it, inspect this valve for any water leaks or signs of wear. If you notice water leakage, get the main shut-off valve replaced by a professional. Use a bucket to catch any spills and clean it with a towel or rag cloth.
Go around the house and open all the faucets, spigots and any other water outlets. Start by opening the faucets that are closest to the main shut-off valve. Gradually move to the faucets that are further away. Remember to open any outdoor faucets as well. Also flush all the toilets and other appliances like washing machines and dishwasher. The purpose is to create a smooth exit for any trapped air in water lines.
Check that no more water is flowing through any of the faucets. Once confirmed, access the main shut-off valve of your water system. Gradually turn on the water supply again. Allow the water to run for a minimum of 15 minutes. This will ensure any remaining air in water lines gets expelled. Plug in your washing machine and dishwasher. Fill them with optimal water and let them operate on the rinse cycle.
After 15 minutes of running water, there should be no more gurgling noises. The water flow should also get steady. Once this happens, start closing the faucets that are furthest from the main shut-off valve and towards the closer ones. Power off your washing machine and dishwasher, too.
After closing all the faucets, listen closely for any unusual noises from the pipes. If you still hear any gurgling or banging, there could be an underlying issue in your plumbing system. You might need to inspect individual components like valves and joints for leaks and get them replaced with new ones.