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3 . If caustic is feeding, check <br /> electrical power from pH monitor #2 on <br /> electrical panel to 3-way solenoid <br /> valve . Rewire if necessary. <br /> Caustic transfer pump 1 .Make sure the air shut off valve is <br /> operates and caustic wide open. Check F/R/C unit for air <br /> circulates , but caustic leaks and malfunctions . <br /> feeds without responding 2 . If F/R/C air unit is OK and no air <br /> to pH range. is leaking. Replace 3-way solenoid <br /> valve. <br /> ACID FEED PROBLEMS <br /> Kari float switch in 1 .Turn the acid feed #1 pH adj . switch <br /> equalization tank B on the electrical panel to the "HAND" <br /> energizes one of the position to energize the acid metering <br /> self priming centrifugal pump. <br /> pumps, 11-12 pH range 2 . If the acid feed metering pump is <br /> in adj . tank 1 , but the operating OK, check electrical <br /> acid feed metering pump power from the pH monitor #1 on <br /> is not operating. electrical panel to the acid feed <br /> metering pump. <br /> 3 . If the acid feed metering pump is not <br /> operating OK, check electrical <br /> panel to the acid metering pump. <br /> 4 . If electrical power is OK, replace <br /> the acid metering pump. <br /> Kari float switch in x Same procedure as above, but use <br /> equalization tank B acid feed #2 pH adj . switch and <br /> energizes one of the pH monitor #2 . <br /> self priming centrifugal <br /> pumps, 11-12 pH range <br /> in adj . tank 2, but the <br /> acid feed metering pump <br /> is not operating. <br /> Acid feed metering pump 1 .Check the foot valves for clogs . If <br /> is operating, but no foot valves is OK, check for air <br /> liquid flow. leaks in the intake line. <br /> 2 . If foot valves and intake lines are <br /> OK, check the acid metering pump for <br /> malfunctions. Replace pump if <br /> required. <br /> Acid in the 100 gal . 1 .Check the electrical power and <br /> polyliner tank is electrical wiring from the panel <br /> empty, but alarm to the Kari float switch. <br /> fails. 2. If electrical power and electrical <br /> wiring are OK, replace Kari float <br /> switch. <br /> 18 <br />