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.
Once you have treated the minor clog, hose some water down the drain. If the water does not flow freely to the outlet, then you might have a serious problem. Medium Clog. To clean a French drain with a medium clog, you will need a pressure cleaner.When you use a pressure cleaner to unclog the drain, chances are that the water from the cleaner might fire back at you when it hits the clog.nce you have treated the minor clog, hose some water down the drain. If the water does not flow freely to the outlet, then you might have a serious problem. Medium Clog. To clean a French drain with a medium clog, you will need a pressure cleaner.