Hopefully, your new sump pump is working its magic. The materials you need will vary based on the location of your pump. Homeowners should also install a backup sump pump. Be careful not to overtighten the fitting. When you need to have your sump pump repaired or replaced, you should hire a professional. Otherwise, the check valve could break. You'll also need to install a pipe to the discharge spigot. The cost of installing a sump pump can vary significantly. The installation of a sump pump is a great way to prevent water damage. Install Sump Pump In Existing Basement: The addition of a sump pump to your home is a useful way to prevent flooding and water damage.