What would cause bubbles to continuously flow from the return jets of an in ground pool if you have released air filter unit?

1. Suction Side Air Leak: Check for any leaks in the suction lines, skimmer, or pool drains that could be drawing in air. Ensure all connections are tight and sealed properly.

2. Faulty Check Valve: Inspect the check valve on the pump's suction side. A faulty or worn-out check valve can allow air to leak into the system, causing bubbles.

3. Clogged Filter: If your pool filter is clogged, it can restrict water flow and cause air to be sucked into the system through leaks or loose connections. Clean or backwash the filter according to the manufacturer's instructions.

4. Air in the Pump: If air has entered the pump's housing, it can cause bubbles to flow through the return jets. Try bleeding the air from the pump by following the manufacturer's guidelines.

5. High Water Level: In some cases, an excessively high water level can cause air to be trapped in the system and lead to bubbles. Adjust the water level to the recommended level.

6. Worn-Out Gaskets: Check the gaskets on the pump, filter, and other pool equipment for wear or damage. Replace any faulty gaskets to ensure a proper seal and prevent air leaks.

7. Improperly Functioning Pool Equipment: If any of your pool equipment, such as the pump, filter, or valves, is not functioning correctly, it can contribute to air leaks and bubble formation. Ensure that all equipment is operating smoothly.

By addressing these potential causes and eliminating any air leaks, you should be able to stop the bubbles from flowing from the return jets in your pool. If the issue persists, it's recommended to consult with a professional pool technician for further assistance.