you could add some fish to your water reclamation tank for a small aquaponics system. Grow a few plants to feed the fish and this forms a closed system. There is no need to fertilize, the fish do it for you! Permaculture at its finest!
As part of the design of Le Monde winery in north east Italy, Alessandro Isola has designed a private poolside retreat, that features this sunken seating area, for the guests of the winery. ---- Le Monde Garden by Alesandro Isola