Air in Water Line: Pressure Tank Failure & Submersible Pumps Explained

Yes, there's a chance that your house's air in the water line could be caused by a failed pressure tank or bladder, even if you have a submersible pump that's always underwater. Here's an explanation:

1. Pressure Tank:

- The purpose of the pressure tank in your water system is to store pressurized water and maintain a consistent water flow to your home.

- If the diaphragm inside this tank fails or develops a leak, it can cause air to enter the water line.

- When the pump turns on, it draws in air along with the water, resulting in air pockets or bubbles in the water.

2. Bladder Failure:

- Inside a pressure tank is a rubber balloon called a bladder. The bladder separates the air and water in the tank, preventing them from mixing.

- When the bladder fails, the compressed air and water can come into contact, causing air to enter the water supply.

3. Submersible Pump:

- The fact that you have a submersible pump continuously underwater does not necessarily eliminate the possibility of air entering the system.

- While submersible pumps are designed to operate while immersed, there might still be gaps or openings where air can enter.

If you suspect that a failed pressure tank or bladder is the cause of air in your water line, it's best to consult a qualified plumber or water systems professional. They can investigate the issue further and make necessary repairs or replacements to restore proper water flow and eliminate the air problem.