At my Fathers home, there is an allotment that for years has grown food for the family. Scattered around the place is various water tanks which collects the rain water for watering the garden. There is a problem with this, some of the tanks are not connected to any guttering and are quite far away from an actual water source. To fill them up you either need to use a bucket to move the water manually or hope you get enough rain to fill them. I wanted to change that. The tanks that are co...