interior drainage

noun

, Physical Geography.

1. a drainage system whose waters do not continue to the ocean either on the surface or underground, but evaporate within the land area.

Example Sentences

Installing expensive interior drainage systems and sump pumps may not be necessary.

From Seattle Times

Excavating and waterproofing from the outside might be more expensive than installing an interior drainage system.

From Seattle Times

Most contractors who advertise solutions to basement moisture problems will propose installing expensive interior drainage systems and sump pumps — even if you don’t need them.

From Washington Post

Excavating and waterproofing from the outside might be more expensive than installing an interior drainage system.

From Washington Post

Many contractors who advertise solutions to basement moisture problems will happily propose fixes that usually involve installation of expensive interior drainage systems and sump pumps — even if you don’t need one.

From Washington Post