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Kari float switch in ** Same procedure as above, but use the the equalization tank acid metering pump #21s switch and energizes one of the pH monitor #2 for pH #2 adjustment self priming centrifugal tank. pumps.pH range from 10.5 to 14 in pH #2 adjust. tank,but the acid metering pump is not operating. Kari float switch in ** Same procedure as above,but use the the qualization tank acid metering pump #31s switch and energizes one of the pH monitor #3 for pH #3 adujstment self priming centrifugal tank. pumps.pH ranges from 9 . 5 to 14 in the pH #3 adiust. tank,but the acid metering pump is not operating. Acid metering pump 1. Check the foot valve for clogs. if is operating, but no the foot valve is OK,check for air liquid flow. leaks in the intake lines. 2 . If the foot valve and intake lines are OK,check the acid metering pump for malfunction.Replace if necessary. Acid in 500 gallon 1. Check the electrical power and poly tank is empty, electrical wiring from the electrical but the alarm fails. panel to the Kari float switch. 2 . If the electrical power and electrical wiring are OK, replace the Kari float switch. DIVERTING VALVE PROBLEMS Kari float switch in 1. Check the electrical power from the the equalization tank pH monitor 13 on the electrical panel energizes one of the to the 3-way diverting valve. self priming centrifugal 2 . If the electrical power is not OK, pumps.pH ranges from check for open electrical circuit. 0-6. 5 or 9. 5-14 in the 3 . If the electrical power is OK, check PH #3 adjust. tank, but the electrical control motor at the the 3-way diverting valve 3-way diverting valve. fails to open for the 4 . If the electrical control motor is wastewater to circulate faulty, replace the whole unit for back to the equal. tank. repair.