One of the most important for homeowners is to be sure that your sump-pump is functioning properly before it needs to. Here is a simple set of instructions to use as a guide on how to do it. http://www.ehow.com/how_6072081_test-basement-sump-pump.html
If you test your sump-pump and it fails plan on getting it replaced immediately. D&D Plumbing can help you by installing a long-lasting Zoeller full cast iron pump.
If everything tested well, but you want the comfort and security and protection you should consider adding a battery powered back up pump system. In addition to pumping during a power outage, these will also give you the protection of pumping if your primary pump does fail.
Another option to be considered is a gas powered generator. If you are home during a power failure and do not have a back up system you can run your pump by generator. Be sure to always use your generator following the manufacturers directions. Using a generator indoors without proper ventilation can be extremely dangerous!
If you find yourself in a flooding situation and your pump fails call for help as soon as possible. The flooding has been so extreme that there has at times been a shortage of professional quality pumps. Getting a call into your plumber can put you on the list to get serviced quickly. Emergency calls are usually scheduled on a "first come first served" basis.