Solutions Drainage pit has 8 entries with similar clues

• 4-letter words
• dykeBank alongside a drainage ditch
• 5-letter words
• sewerUrban drainage system
• ditchDrainage channel
• 6-letter words
• sewageRefuse carried off through drainage system
• gutterDrainage channel
• 8-letter words
• sanitateInstall drainage and sewage disposal
• scuppersShip's drainage
• overflowDrainage outlet