5. Rainwater drainage
There are several ways of collecting and treating and/or discharging the rainwater collected by the gutters, which capture the water falling on the entire surface of the roof.
This water can be recovered and reused later, whether for watering the garden or washing the car or terrace.
Where a public stormwater drainage system exists, connection to it is a legal obligation. Rainwater is evacuated via a separate network from that which carries wastewater. This is the most common collective storm drainage system in use today. Wastewater is redirected to a wastewater treatment plant, while rainwater is discharged into the environment.
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External elements for wastewater and blackwater drainage
Bibliography
- Building work – Sanitary plumbing for buildings – Part 1-1-1: domestic hot and cold water supply systems – Standard technical specifications – Part 1-1-2: drainage systems – Standard technical specifications – Part 1-1-3: sanitary appliances and domestic hot water appliances – Technical specifications – Part 1-2: General material selection criteria – Part 2: standard special administrative clauses - NF DTU 60.1 - Décembre 2012 ...
Regulations
Arrêté du 22 juin 2007 relative à la collecte, au transport et au traitement des eaux usées des agglomérations d'assainissement ainsi que à la surveillance de leur fonctionnement et de leur efficacité, et aux dispositifs d'assainissement non collectif recevant une charge brute de pollution organique supérieure à 1,2 kg/j de DBO5.
Decrees of May 6, 1996 laying down the technical requirements applicable...
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