The primary function of bibliographic citations is to assist the reader in finding the sources used in the writing of a work. To these basic citations, the annotated bibliography adds descriptive and evaluative comments (i.e., an annotation), assessing the nature and value of the cited works. The addition of commentary provides the future reader or researcher essential critical information and a foundation for further research.
French drain. A French drain or weeping tile (also blind drain, rubble drain, rock drain, drain tile, perimeter drain, land drain, French ditch, sub-surface drain, sub-soil drain or agricultural drain) is a trench filled with gravel or rock or containing a perforated pipe that redirects surface water and groundwater away from an area.
Laying Out the French Drain. The easiest method when laying out the location for the drain is to install it along the walls that meet in the corner where the sump pit is located. This provides an ideal location for the drain to direct the water, as a sump pump can pump the water out of the pit as it fills.aying Out the French Drain. The easiest method when laying out the location for the drain is to install it along the walls that meet in the corner where the sump pit is located. This provides an ideal location for the drain to direct the water, as a sump pump can pump the water out of the pit as it fills.