Be Safe ... Not Sorry
Sump pumps should be cleaned and inspected annually. Make sure there are no tree roots growing into the crock or sump. Remove any debris. Verify the discharge line is not obstructed or broken and that the check valve (1 way valve) is working properly and not leaking. Finally, make sure there is a secure and child resistant cover over the sump.
If your house has a sump pump you should install an alternate energy back-up pump. (Battery or water pressure types are available.) If your primary pump fails or the power goes out, your basement, crawl space or lower level could flood. An alternate energy back-up pump could prevent flooding and/or damage.