I am staying in Bulawayo and working on a project in Hwange. The project community is small with between 350 to 400 inhabitants. It is a detention centre (prison) and there are 23 housing units for prison staff with a population of about 95 people plus, whilst the rest comprise the inmates staying in the confined area. I would like to know the minimum storage capacity of overhead water tanks for. Please give the details of calculation. Regards, Themba, Water and Sanitation