They exist numerous options, ...

They exist numerous options, the majority of structural type and therefore once applied are useful along all the year:
- Taps of showers, kitchens, toilets... With systems of aireators (reduce the discharge in spite of that visually "seems" a big water jet.
- Use of grey waters (wash basin and showers) for uses no drinkable (WC and irrigation).
- Use of water of rain, together with the grey waters, for uses no drinkable.
- Treatment "in situ" of the waters used to avoid his poured, using them mainly in irrigation.

To urban level the proposal of an alternative network of water recovered can be useful to zones with shortage, as they are the arid and of Mediterranean climate zones.

Increase the water cost is, also an interesting approach, to impulse water consumption reduction, that has been useful in Catalonia.