If there are no more air bubbles coming, plug the pipe completely.

How to prime well pump. Steps to prime a shallow well pump: If your well water pump won't prime, it might be. Fill the water pump slowly.

Remove the plastic or rubber prime plug and insert a hose into the pump’s top hole. Insert the prime plug in. It will start to run off once the well pump is full.

Partially plug the hole and run the pump until the air bubbles cease. When you plug the pipe there should be no water bubble in the water. Once the hose is attached, turn on the water so that the well pump is filled.

This pressure is needed to supply water to. Slowly open the suction isolation valve and the air vents on both the suction and discharge pipes. A well pump is primed so that internal pressure is created inside the water pipe extending from the pump and going in the water.

Our pump expert explains how to prime a well pump and what to do if you nee. Follow these four steps and learn how to prime a water well pump: Let it fill completely and make sure that it’s clean water.

Repeat the filling and running actions until water leaks. Make sure that the water system of the donor works well. Then, fill the pump casing with water until it’s completely filled and water is leaking out.