Do bladder pumps need to be replaced, how often, and how can you tell?

Some bladder pumps need to be replaced, or at least serviced, it depends on the manufacturer. QED manufactures a bladder pump that has a 10-year warranty including the bladder. But some of the pumps I installed 28 years ago are still in service and have never been repaired or replaced in any way. In fact, QED has installed well over a 100,000 bladder pumps with a failure rate of less than 1%. There is a simple test that can be done at the surface to identify if there is any leakage, or any concern about bladder integrity, QED can email you a troubleshooting checklist for bladder pumps.