The French are considered the first to use an underground septic tank system in the 1860’s. By 1880, two-chamber septic systems were being used in the United States. Today, nearly one in four households in the United States depends on an individual septic...
A vent is a pipe or pipes install to provide a flow or air to or from a drainage system to provide a circulation of air within such system to protect trap seals from siphonage and back-pressure. This has a two fold purpose, one to prevent sewer gases from entering...