6. Conclusion

Uses :

• sanitation ;

• wastewater ;

• rainwater ;

• drinking water ;

• ducts for various fluids.

Current length of a section :

• DN < 800 mm, from 30 to 100 m ;

• DN > 800 mm, from 30 to 200 m.

Ancillary works :

• working shaft with or without reaction bed, maximum depth 20 m ;

• wells transformed into manholes.

Guidance :