Water Treatment
This chemical is commonly used to disinfect drinking water.
What is Chlorine?
This device provides access to the water distribution system for firefighting and flushing.
What is a fire hydrant?
A pH of this number is considered neutral.
What is 7?
This is the unwanted reversal of water flow in a potable water system.
What is backflow?
One million gallons is commonly abbreviated this way.
What is MG?
This process causes small suspended particles to join together into larger particles.
What is flocculation?
This valve allows operators to isolate sections of a water main.
What is an isolation valve / gate valve?
This disinfectant residual is routinely measured throughout a water distribution system.
What is chlorine residual?
This type of backflow occurs when downstream pressure exceeds supply pressure.
What is backpressure?
One million gallons per day is abbreviated this way.
What is MGD?
This process allows suspended solids to settle to the bottom of a basin.
What is sedimentation?
This term refers to the pressure available in a water system when no water is flowing.
What is static pressure?
These bacteria are commonly used as indicators of possible contamination in drinking water.
What are coliform bacteria?
This type of backflow can occur when system pressure suddenly drops.
What is backsiphonage?
A pump running at 500 gallons per minute for one hour pumps this many gallons.
What is 30,000 gallons?
This measurement indicates how cloudy water is and is reported in NTU.
What is turbidity?
Opening hydrants periodically to remove sediment and improve water quality is called this.
What is flushing?
Water containing high concentrations of calcium and magnesium is described this way.
What is hard water?
This physical separation is considered one of the most effective methods of backflow prevention.
What is an air gap?
A 100,000-gallon tank that is 50% full contains this many gallons.
What is 50,000 gallons?
This common coagulant is also known as aluminum sulfate.
What is alum?
This damaging pressure surge can occur when water velocity changes suddenly in a pipeline.
What is water hammer?
This process occurs when chlorine reacts with ammonia to form a longer-lasting disinfectant.
What is chloramination?
This backflow assembly uses two independently acting check valves with a relief valve between them.
What is an RP / reduced pressure principle assembly?
A plant treating 2 MGD treats approximately this many gallons in 12 hours.
What is 1 million gallons?