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.
A French drain is a pipe with holes throughout its length that is used to assist yard drainage. If your yard is low-lying and water tends to stand, causing soggy or muddy ground, a French drain may help encourage that water to continue moving through instead of collecting.ou should be able to find a hole in the ground where one end of the French drain begins. If you are not sure where the start of the drain is, it is best to look near the high point on your yard is, as the drain helps water run downhill. Run water down the drain. Using your garden hose, send water down the drain.