The life expectancy of other parts is indefinite in most cases. In such a case, we recommend inspection and possible replacement rubber valves and gasketswhenever the brushes are changed. Because of SunRise's low flow rate and its tolerance for running dry, it may be placed higher in the well than a conventional pump. A controller is required to start our pump, and to prevent stalling in low sunlight conditions. Our controller is simple and robust.
Failures are rare.
The controller is easily accessible, above ground. I've never even seen a solar pump. Installation requires nuts and bolts assembly and simple wiring. It can be installed using the same technique as a conventional AC pump, or it can be installed by hand with sufficient manpower. We have shipped hundreds of solar submersibles to pump dealers, ranchers and homeowners.