Abstract: Method of reducing moisture damage to a building having a foundation, such as crawl space or a basement, with a floor that includes excavating a pit in the floor and positioning a plastic liner in the pit. This plastic liner defines a cavity and an inlet intersecting the cavity that is configured to collect water. A space exists between the liner and the pit. A trench is formed in a portion of the floor and configured to intersect the pit. A drain tile is put in the trench that has an outlet engaging the inlet of the liner. A pneumatic conveyor system is positioned outside the crawl space or basement that has an intake and a dispensing outlet. An aggregate source is provided outside the foundation adjacent the intake, and the aggregate generally does not exceed the size of pea gravel. A flexible hose is connected to the dispensing outlet which has a discharge outlet selectively positioned within the crawl space or basement.

Abstract: Method of reducing moisture damage to a building having a foundation crawl space with a floor that includes excavating a pit in the floor and positioning a plastic liner in the pit. This plastic liner defines a cavity and an inlet intersecting the cavity which is configured to collect water. A space exists between the liner and the pit. A trench is formed in a portion of the floor and configured to intersect the pit. A drain tile is put in the trench which has an outlet engaging the inlet of the liner. A pneumatic conveyor system is positioned outside the crawl space which has an intake and a dispensing outlet. An aggregate source is provided outside the crawl space adjacent the intake, and the aggregate generally does not exceed the size of pea gravel. A flexible hose is connected to the dispensing outlet which has a discharge outlet selectively positioned within the crawl space.