The letter D in a dream represents confrontation with sacrifice. Full awareness of a situation that demands that you give something up or put others first. The symbolism is based on the design of the letter D being a straight line that is facing a half circle.
drain line: A pipe line which is used to carry water from the water treatment system to a waste system. drinking water: A water treated or untreated which is intended for human use and consumption and considered to be free of harmful chemicals and disease-causing bacteria, cysts, viruses or other microorganisms.
Through coagulation, water treatment plants can remove the waste particles in water and further treat it to be usable again. Treated water is also less harmful when returned to the natural environment. Here are a few more facts about coagulation water treatment.