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* vacuum breaker A back.ow prevention device that automatically vents a water line to the atmosphere when subjected to partial vacuum. ...le subject to an internal vacuum. Sludge is drawn to the .lter cloth while water passes through the sludge cake.

* L*ARO Reverse osmosis system by the former L*A Water Treatment Corp. * lagoon An excavated basin or natural depression that contains water, wastewater, or sludge.

* Fahrenheit (F) A temperature scale on which water’s freezing point is 32° and boiling point is 212°. ...surface channeling of water fed by wells or springs to provide a community water supply (Arabic).

...px|thumb|Water in three states: liquid, solid ([[ice]]), and (invisible) [[water vapor]] in the air. [[Clouds]] are the accumulations of the droplets, [[con {{Main|Water (properties)|Water (data page)|Water model}}

* Earthtec® Liquid copper water treatment product used as algicide/bactericide by Earth Science Laboratorie * ebb (1) The .owing back of water brought in by the tide. (2) To recede from a .ooded state....

* izontally into a water-bearing stratum, radiating from a central sump. radiation The transfer of e * Ranney Intake Surface water intake system utilizing a passive screen/caisson arrangement by Layne Chris

* feed water * fresh

* absolute humidity The total amount of water vapor present in the air, measured in grams per cubic meter. * absolute purity water Water with a speci.c resistance of 18.3 megohm-cm at 25°C.

...health risks; it prevents endanger­ment of underground sources of drinking water. * safe water Water that does not contain harmful bacteria, toxic materials, or chem­icals and