septic tank

US /ˈsep.tɪk ˌtæŋk/
UK /ˈsep.tɪk ˌtæŋk/
"septic tank" picture
1.

fosa séptica

an underground tank in which sewage is collected and allowed to decompose through bacterial activity before draining by means of a leaching field.

:
Our house uses a septic tank system for wastewater.
Nuestra casa utiliza un sistema de fosa séptica para aguas residuales.
The plumber had to pump out the septic tank.
El fontanero tuvo que bombear la fosa séptica.