The section of the shaft located below the lowest occupied space is generally referred to as the “elevator pit.” Elevator pits need to extend down beyond the sub-slab capillary break and water collection system, and may require below-grade waterproofing depending on geological conditions. Typically, elevator pits are waterproofed by applying injection, coating and the necessary repairs to cracks and corrosions under the slab and on the exterior of the pit walls. These acts as barriers on the surface of the concrete to prevent the penetration of below ground water.