Have a battery backup system installed to protect you and your home should the primary pump fail. The system consists of a backup battery powered sump pump, a deep cycle marine battery, a charging system, and an alarm to protect you from a flood. Don't store precious keepsakes on the basement floor near the sump pit or the floor drain. Maintain your sump pumps annually.
When you obtain homeowners insurance, be sure to ask your insurance carrier if you need additional coverage to insure your home against water backing up into your basement.