Hi all, I'm stuggling with a design problem to do with pump selection for a reticulation system at a mine site. Essentially I have to reticulate water from a storage dam to the following areas with the following minimum discharge pressures. - Conveyor washboxes and spraybars ( constant 8-11 L/s @ 600kPa depending on no. of operating conveyors) - Stockpile dust suppression sprinklers (intermittent 15L/s @ 700kPa) - A vehicle washdown facility (twice a day filling a elevated storage tank at around 1.5L/s @ atm) Note that there is intensly varying demand throughout the day, especially the stockpile dust suppression sprinklers which only operate for a few minutes each throughout the day. Can anyone help suggest an efficient way to hydraulically size the system and select ideal pumps considering that there will be different system curves due to varying flow demand scenarios?