flow rate of 20 litres/minute borehore and 70 mg-N/l,,, the alloweable limit in drinking water is normally 10 mg-N/l..

Published September 1, 2016 22:12 by Evans Tembo, Senior TVET Advisor - WASH & Solar Energy - GIZ

flow rate of 20 litres/minute borehore and 70 mg-N/l,,, the alloweable limit in drinking water is normally 10 mg-N/l..