Installation begins with excavating a sump pit to place the sump pump liner into. Next, clean gravel is backfilled around the liner allowing for proper drainage into the liner, especially if you have a perimeter drainage system installed as well. An airtight sump pump lid including rubber grommets around all pipes and wires keeps odors and humidity from rising out of the sump pit, while also preventing items and debris from falling in from the basement floor. To complete the sump pump installation, the floor is restored flush for a clean, attractive look.