1 If using the British Imperial System, divide the total weight by 112. 2  This is a long CWT and is the basis for the long ton, or 2,240 pounds (112 pounds x 20 long CWT). 3  In places where both measurements are sometimes used, such as parts of Canada, the 100-lb.4  CWT is commonly called a short CWT.n the U.S, one CWT is equal to 100 pounds; in the UK, a CWT is known as a long hundredweight and weighs 112 pounds. The CWT system originated in Europe centuries ago; it's still in use in many industries, including farming and transportation, because it works.
Lagoons are shallow bodies of water that gets separated from larger water bodies due to the formation of reefs or barrier islands. There are mainly two types of lagoons:
A lagoon system consists of two components: a septic tank and a small earthen pond with a uniform 3-foot depth. A septic tank is a large, watertight, corrosion-resistant, buried container that receives raw sewage from the plumbing drains of the home.reeboard, or the distance from the three-foot operating level to the top of the berms, should be 24 inches (18 inches minimum) to keep surface runoff from entering the lagoon. Figure 5Plan view of a residential sewage lagoon. Sizing the septic tank and lagoon Septic tanks come in rectangular, oval or round shapes.