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3 . 6 Maintenance Route Frequency: Weekly <br /> - Inspect pH adi . tanks 1 , 2 , and <br /> flocculation tank for leaks and <br /> damages . Clean if necessary. <br /> - Inspect Lightnin mixer for damages and <br /> misalignment of propeller . Retorque <br /> driven gear bolts if necessary. <br /> - Inspect air shut-off valves , filter/ <br /> Regulator/Lubricator , 3-way solenoid <br /> valves , caustic feed valves , and <br /> caustic shut-off valves for leaks and <br /> damages . <br /> - Inspect pH probes for obstruction and <br /> damages . Clean if necessary. <br /> - Inspect diverting valve for smooth <br /> operation and damages . <br /> Acid Feed Tank - Inspect 100 gal. polyliner tank for <br /> leaks and damages . Clean if necessary. <br /> - Inspect acid metering pumps for leaks <br /> and damages . Re-adjust meter if <br /> necessary. <br /> - Inspect foot valves for leaks , <br /> damages , and clogs . <br /> - Inspect Kari float switch for <br /> obstruction of float . Check circuit <br /> as required. <br /> Caustic Feed Tank - Inspect caustic tank for leaks and <br /> damages . <br /> - Inspect caustic ball shut-off valves , <br /> air shut-off valves , filter/regulator/ <br /> lubricator, 2-way solenoid valves , and <br /> air diagram Wilden pump for leaks and <br /> damages . <br /> Polymer Feed Tank - Inspect paddle wheel flosensor , signal <br /> conditioners , and electrical wiring <br /> for damages . <br /> - Inspect 100 gal . polyliner tanks for <br /> leaks and damages . <br /> - Inspect polylines metering pump for <br /> leaks and damages . Re-adjust if <br /> necessary. <br /> - Inspect the foot valves for leaks , <br /> damages, and clogs . <br /> - Inspect the Kari float switch for <br /> obstruction of float . Check circuit <br /> as required. <br /> 16 <br />