Chamber drain to soften the blow of airete that occurs on the discharge pipe.
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
support for, Cat ladder with anticorrosive paint, Pead, support for, variable, support for, support for, Cat type ladder, Concrete cover, support for, Rain channel, pending, variable, support for, support for, Cat type ladder, Concrete cover, support for, support for, Proy. Camera access cover, Lid