The answer to 'sump pump making gurgling noise' is that a gurgling noise from a sump pump is usually a sign of an issue with the pump or the drainage system. This can be caused by a blocked or clogged discharge line, a faulty check valve, or even a problem with the sump pump itself.
Some common symptoms of a gurgling sump pump include the pump running frequently or continuously, water backing up in the sump pit, and a gurgling or bubbling sound coming from the pump. These issues can be caused by debris or sediment buildup in the discharge line, a damaged or stuck check valve, or a problem with the pump motor or impeller.