A sump liner comprising a liner wall joined with a base member, the liner
wall extending about the periphery of the base member, the liner wall
comprising a primary reservoir portion and a secondary reservoir portion,
with a weir extending from the base member and the inside surface of the
liner wall. The weir divides the sump liner interior into a primary
reservoir and a secondary reservoir, with a primary pump to remove water
from the primary reservoir and a secondary pump to remove water from the
secondary reservoir. The primary reservoir receives drainage water through
an inlet pipe. The secondary reservoir receives drainage water that flows
over the weir in the event the primary pump in the primary reservoir
fails, in which case the secondary pump in the secondary reservoir pumps
out the water.
