It's also a good idea to install a battery-powered backup sump pump to avoid the threat of basement flooding. Then, you'll need some primer to help seal the ends of the pipe. Installing one will save you thousands of dollars in repairs. This makes the sump a prime location to funnel excess water away from your foundation. For example, do you have a French drain? In addition to a sump pump, a French drain is a very useful water drainage system for your basement. If so, you'll need to make sure you don't build the pit for the pump too close to the street. Before you can get started, it's important to know what kind of sump pump you have.