drainage conduit: crossword clues

Matching Answer
Confidence
SEWER
60%
CULVERT
60%
SUMP
52%
BASIN
41%
DUCT
40%
ELL
40%
PLAYA
20%
DITCH
20%
MAIN
20%
ELLS
20%
e.g. Greek Cheese
e.g. O?D (Use ? for unknown letters)