Water that is so very chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] from our sinks, tubs, toilets and washers flows from our houses via pipes to a big network of underground pipes called the chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?]. The sewer pipes take the water to the chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] treatment plant. At the plant, the wastewater enters the chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?]. The water is brown and smelly. In the grit chamber, heavy particles such as small stones, sand, coffee grinds, and metal are removed. Next the water heads through the chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] also known as a comminuter. This piece of machinery shreds rags, chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] balls, and any other floating debris. Next the wastewater goes to the primary sedimentation tank also know as a chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?]. Here lighter sediments are pulled to the bottom of the tank by chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?]. The sediments from this tank are called chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?]. From the settling tank the water enters the aeration basin where chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] is added to the water. The oxygen helps the bacteria decompose or break down the chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] in the wastewater. Next, in the second settling tank the bacteria and remaining waste settle to the bottom. This sediment is called activated chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] and some of it is sent back to the aeration basin to be used again. Last chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?] is added to the now clear water to kill harmful organisms. The oxygen level of the water is then check before the now clean water is released into the chlorinedirtygravitygreasegrindergrit chamberoxygenriversettling tanksewage sludgesewersludgewastewastewater[?].