Determination of the head of the make-up water pump: The make-up water for the secondary water network is supplied by the primary water network
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Three units need to be designed, namely for the upper area, the lower area, and the theater； The make-up water for the secondary system is supplied by the primary system: the primary system maintains a pressure of 0.5 Mpa; where the pressure is insufficient, each unit requires a make-up water pump to increase the pressure (the theater may not need such a pump – in that case, the pressure signal from the secondary system is used to control the automatic valve for make-up water supply, with a manual bypass valve also provided) ； Do not design water replenishment systems such as soft water tanks or ion exchangers ；
Determination of the head and flow rate for the make-up water pump