Need an air gap for sump pump discharge
My sump pump drainage system was not set up correctly. The 1 1/2 inch PVC pipe runs outside the house, into the ground, and is connected to the storm sewer. I understand it is supposed to drain into a larger pipe (3 or 4 inches) which would allow an air space and more room.
Since there is no air venting in the system, every time the pump operates, an airlock or vacuum is created when the water tries to escape to the street. This results in terribly loud noises around my pump as the system is gasping for air to fill the vacuum.
Some plumbers have suggested that I replace the 1 1/2 inch pipe outside my house with the larger 3 or 4 inch pipe. This involves excavation and much expense. I am looking for a cheaper solution.
Everything about the 1 1/2 inch pipe I have works, except for the vacuum that is created. I am looking for a product or idea that will allow all the water to get through the pipes, and then allow for air to get in when the pump stops to break the vacuum. Is there such a product or quick fix for this problem?