Installing a sump pump in a dirt crawl space is not as difficult as one might think. The first step is to determine where the water is coming from and how much water there is. Once that has been determined, the next step is to excavate the area around the perimeter of the space so that the liner can be placed. After the liner has been installed, the next step is to install the sump pump itself. Finally, once everything has been installed, it is important to test the system to make sure it is working properly.