Manhole to the foot of rain water downpipe
Drawing labels, details, and other text information extracted from the CAD file (Translated from Spanish):
Wall of blocks., Platinum clamp, Mm, Downpour of, P.v.c. Of m.m., Concrete cover with, Var. Cms., Concrete walls cms., With var. Cms., Tube p.v.c. Of m.m., Concrete filler., Concrete bottom slab, With var. Cms.