WATER CALCULATION REQUIRED FLOODING CONTROL CALCULATION Calculate total amount of water  m3 If you don't know the amount, estimate it the following way: Number of pools or ponds  units Width of pool or pond:  m Length of pool or pond:  m Average deep: (height of water column)  m Water exchange percentage (value between 0 - 100)   % Volume of water to exchange:  m3 Daily pumping time  hours Total pumping flow rate required  m3/s Pump Diameter Flow Rate m3/s Amount of Pumps Total Flow Rate m3/s Water surplus (%)