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Suppose the pressure switch used to control the "lead" potable water pump is set at 45 psig cut-in for pump start and 55 psig cut-out for pump stop. What would be an appropriate setting for the "lag" potable water pump?
A) 40 psig cut-in for pump start and 55 psig cut-out for pump stop.
B) 45 psig cut-in for pump start and 50 psig cut-out for pump stop.
C) 45 psig cut-in for pump start and 60 psig cut-out for pump stop.
D) 50 psig cut-in for pump start and 60 psig cut-out for pump stop.
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