Rainfall
Average annual rainfall Paris region 637 mm per year. Area of Roof 126.68 sq m (Inkscape) annual volume of water on roof 0.637 x 126.68 = 80.7 cu m. 0 80 000 litres/year Low flush toilet say 6 litres per flush. Ave 2 people 5x per day = 60 litres per day = 60x365 = 21 900 litres per year https://www.gammvert.fr/2-1360-outils-de-jardinage/2-5031-arrosage-recuperateurs-deau/3-3592-recuperateurs-deau/p-43196-cuve-de-recuperation-deau-enterree-garantia-jardin-flat-confort-5000-l#ref=3592-3 5 000 litre underground tank kit with pump 3100 euros https://www.cuve-shop.fr/cuve-a-eau-de-pluie-aerienne-ronde-10000-litres-diametre-240cm.html 10 000 litre tank

Comments
Post a Comment