The first thought

We decide to divide the topic into four part:
1.Gathering
2.Treatment
3.Delivery
4.Heating&Cooling

Salvetti - Which primary function do we need?

Dilasser - To begin at the begining, we need to know how much water we need to collect to match the daily…

Chacon - The water needed for the entire building could hardly be provided by rainwater only, also if rain…

Nulli - To get the water heater you can use several possible technologies, especially in the respect for…