You'll also need a check valve to prevent backflow. In addition to regular cleaning, you can replace the lid on the float. To replace a primary sump pump, you will need a few hand tools and PVC parts. The pump can help prevent a flood from damaging your basement and the contents of your home. M.. Heavy rains can also back up sewer systems and sanitary sewer lines. The best way to keep your home dry is to install a reliable sump pump. Choosing the right sump pump will depend on your preferences. A competent plumber will be able to advise you on the type of sump pump you need and how to make it work for your particular situation. Then, you'll need to test your system out in the real world. However, the nitty-gritty of installing a basement waterproofing system will require the services of a seasoned professional.