I'm having an issue with my well pulling air. Last November we bought the house and it's out first with a well. By December faucets started sputtering. Our plumber found a small rusted hole in the pressure tank so we replaced it and the issue stopped. A few weeks ago it started again. In all my troubleshooting I've found that the air get introduced when the pump kicks on but is then fine. When the pump kicks on the water level in the sediment filter drops to about half and if I don't immediately purge that it from the button on the filter it goes on to cause the sputtering. There's a backflow preventer just after the well line enters the house but before the tank, I read that can be an issue? Could this just be a seasonal problem? Need help because the sputtering terrifies my daughter and she runs away anytime anyone goes near anything with water.