SR0085076_OWTS - Laserfiche WebLink

Home Browse Search

24 Paul W. Donoho, R.E.H.S. #6227 (530) 701-9972 AdvanTeXo O&M COMMERCIAL TREATMENT SYSTEMS Maintenance s • Annual Maintenance Once a year,send copies of the complete activity log to the appropriate Measure the scum and sludge accumulation in all tanks annually.Record person.This information is very valuable for analysis and troubleshooting if scum and sludge measurements on a Field Maintenance Report Form. problems should occur. 1,Measuring the scum layer.Using a scum utility measuring Check voltages and amperages of all pumps and retard them on a Field gauge or similar tool,measure the thickness of the scum layer. Maintenance ReportForm.Refer to the start-up voltages and amperages With this measurement,determine If the distance from the bottom recorded in the"Start-up&Operation"section of this document.If the of the scum layer at the liquid's lowest normal level to the bottom voltage drop or amperage exceeds NEC requirements,have an electrician of the outlet tee or to the top of the inlet holes for the pump vault is verify the service line and check pump windings. 3 inches(76 mm)or less.If so,it's time to pump out the contents The pumping system should be inspected annually to ensure it is from the tank(scum,sludge,and liquid)completely.After removing operating properly.Unscrew the stainless steel bolts that fasten the the septage contents from the tank,refill it with water to its normal fiberglass lid over the pumping equipment.Remove the fiberglass lid far operating level. an inspection that includes these steps: 2.Measuring the sludge layer.Using a Sludge JudgeQ°or a.Verify there are no obvious holes or leaks in the riser or around the similar tool,measure the thickness of the sludge layer.With this perimeter of the riser connection to the tank.Wetness or watermarks measurement,determine if the distance from the top surface of the may be an indication of weeping. sludge to the bottom of the outlet tee or inlet holes for the pump vault FVU)is 6 inches b.Inspect the splice box to ensure it is free of water.Ensure the lid and (152 mm)or less.If so, connections are secure. again,it's time to pump out c.Verify the floats are in good condition and properly secured to the the contents from the tank float tree.Verify the float cords are neatly wrapped inside the riser so (scum,sludge,and liquid) that they cannot interfere with the operation of the floats. completely,g the tank is d.Vert 'float fitted with a pump vault - � operation.Refer to the float tests in the"Start-up& or effluent filter discharge Operation"section of this document. assembly,take the All ICOM control panels contain a lithium battery for backup.For good measurement from the top measure,we recommend you replace the battery every two years.Refer surface of the sludge layer to"Battery Replacement"in the Custom ICOM Control Panels and to the bottom of the vault's 11yper7erminal Access Manual.provided in Appendix F. inlet ports.After removing the septage from the tank, refill it with water to its normal operating level. NOTE:Turn the laterals in the AdvanT60 treatment unit 180 degrees (so the spray nolle turbines face up)prior to flushing to prevent naive clogging while matenal is being pushed along the latefal to the flushing value. pIM-OM-AT%3,Rev.2.1,05/t5 �•�Copyright erenca Systems®,Inc�Property of Orenco Systems®,Inc Do not reproduce or disNhute without written authorization from Orenaa�89U-348-9943