When it comes to buying a sump pump, he says the first thing you should ask yourself is "Do you want your basement dry all the time?" That might seem like a silly question, but it is actually fundamental.
A good working sump pump is your first line of defense against basement flood. The problem is that, although a good sump pump usually lasts for a long time, if you only have one pump you might wake up one day to an unpleasant surprise.