What is another word for septic tank?
Pronunciation: [sˈɛptɪk tˈaŋk] (IPA) 
Septic tank, a system for the disposal of wastewater, can also be referred to by a plethora of other words and phrases. Some common synonyms for septic tank include sewage treatment system, sewage disposal system, wastewater treatment system, onsite sewage treatment system, onsite septic system, and simply sewage system. There are also variations of these terms, such as subsurface sewage treatment system, which refers specifically to a type of septic system that is installed underground. Other terms that may be used interchangeably with septic tank include leaching field, drain field, and soakaway pit, which all refer to the area where treated wastewater is released back into the ground.
