This article is about the modern sewer system for carrying waste. For sewers designed to carry bhe street runoff drainage system, see storm drain.
"Stink pole" redirects here. See also Drain-waste-vent system.
PVC sanitary sewer installation. Sanitary sewers are sized to carry the amount of sewage generated by the collection area. Sanitary sewers are much smaller than combined sewers designed to also carry surface runoff.
A sanitary sewer is an underground pipe or tunnel system for transporting sewage from houses and commercial buildings (but not stormwater) to a sewage treatment plant or disposal.
Sanitary sewers are a type of gravity sewer and are part of an overall system called a "sewage system" or sewerage. Sanitary sewers serving industrial areas may also carry industrial wastewater. In municipalities served by sanitary sewers, separate storm drains may convey surface runoff directly to surface waters. An advantage of sanitary sewer systems is that they avoid combined sewer overflows. Sanitary sewers are typically much smaller in diameter than combined sewers which also transport urban runoff. Backups of raw sewage can occur if excessive stormwater inflow or groundwater infiltration occurs due to leaking joints, defective pipes etc. in aging infrastructure.
A sanitarysewer is an underground pipe or tunnel system for transporting sewage from houses and commercial buildings (but not stormwater) to a sewage...
Sanitarysewer overflow (SSO) is a condition in which untreated sewage is discharged from a sanitarysewer into the environment prior to reaching sewage...
A sanitary manhole (sewer manhole, sanitarysewer manhole or sewer maintenance hole) is a manhole that is used as an access point for maintenance and inspection...
stations, storm overflows, and screening chambers of the combined sewer or sanitarysewer. Sewerage ends at the entry to a sewage treatment plant or at the point...
drains are separate and distinct from sanitarysewer systems. The separation of storm sewers from sanitarysewers helps prevent sewage treatment plants...
gravity sewer design is less often used nowadays when constructing new sewer systems. Modern-day sewer designs exclude surface runoff by building sanitary sewers...
several households together usually takes places in either sanitarysewers or combined sewers. The former is designed to exclude stormwater flows whereas...
rainfall and inadequate maintenance can lead to combined sewer overflows or sanitarysewer overflows, i.e., more or less diluted raw sewage being discharged...
They are intended to prevent backflow of sewage on the sanitarysewer line during a flood or sewer blockage, and have no connection with potable water....
During high precipitation periods a sewer system may experience a combined sewer overflow event or a sanitarysewer overflow event, which forces untreated...
into a solid, soap-like substance. Grease and fat blockages can cause sanitarysewer overflows, in which sewage is discharged into the environment without...
gravity sewer, and lift stations are often required to lift sewage into sewage treatment plants. Gravity sewers can be either sanitarysewers, combined...
recovery. A full grease trap does not stop any FOG from entering the sanitarysewer system. The emptied contents or "brown grease" is considered hazardous...
(sometimes called "pumping to daylight"). Pumps may discharge to the sanitarysewer in older installations. Once considered acceptable, this practice may...
happen quickly enough, localised flooding occurs (surcharge). Such sanitarysewer overflow can mean streets becoming flooded with a mixture of water and...
sewage treatment plants without disinfection steps, sanitarysewer overflows and combined sewer overflows (CSOs) during storm events and intensive agriculture...
additional untreated sewage into the rivers. Such an event is called a sanitarysewer overflow. In 2004, the EPA estimated that 16 billion US gallons (61...
to provide a flexible leak-free joint. Clay pipe has been in-use in sanitarysewer systems for at least 5,000 years VCP pipe is made by forming clay then...
that dig the trenches to accommodate the placement of sanitarysewer pipes and stormwater sewer drainpipes. They use surveyor’s equipment to ensure the...
Sewer gas is a complex, generally obnoxious smelling mixture of toxic and nontoxic gases produced and collected in sewage systems by the decomposition...
the US, and in household sanitarysewer pipe applications, it accounts for 75%. Buried PVC pipes in both water and sanitarysewer applications that are 100 mm...
layer) is a skilled tradesman who lays pipe, such as for storm sewers, sanitarysewers, drains, and water mains. Pipelayers may grade (i.e., level) trenches...
manipulate the conveyance of fluids such as water for potatory, irrigational, sanitary, and refrigerative purposes, gas, petroleum, liquid waste , or any other...
plant. When the tank is emptied, the contents are usually pumped into a sanitarysewer or directly to a treatment plant. The portable toilets used on construction...
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