Access points to allow cleaning or rodding of the drains must be provided:

• immediately inside the boundary
• at every change in gradient over 45°
• at every horizontal change in direction more than 45°
• at every junction that serves a soil fixture or any branch drain longer than 2 m
• every 50 m on straight drains if rodding points are used, or every 100 m if inspection chambers, access chambers or inspection points are used
• at both ends of the building where a drain passes under a building.