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2 <br /> Septic Tank <br /> The septic tank shall be maintained by an individual certified to service septic tanks <br /> under sec. 281.48, Stats. The contents of the septic tank shall be disposed of in <br /> accordance with NR 113, Wis. Adm. Code(Servicing Septic or Holding Tanks,Pumping <br /> Chambers, Grease Interceptors, Seepage Beds, Seepage Pits, Seepage Trenches, Privies, <br /> or Portable Restrooms). <br /> The operating condition of the septic tank and outlet filter shall be assessed at least once <br /> every 3 years by inspection. The outlet filter shall be cleaned as necessary to ensure <br /> proper operation. The filter cartridge should not be removed unless provisions are made <br /> to retain solids in the tank that may slough off the filter when removed from its enclosure. <br /> If the filter is equipped with an alarm,the filter shall be serviced if the alarm is activated <br /> continuously. Intermittent filter alarms may indicate surge flows or an impending <br /> continuous alarm. The septic tank shall have its contents removed when the volume of <br /> scum and sludge in the tank exceeds 1/3 the liquid volume of the tank. If the contents of <br /> the tank are not removed at the time of an assessment, maintenance personnel shall <br /> advise the owner of when the next service needs to be performed to maintain less than <br /> maximum scum and sludge accumulation in the tank. <br /> Pump Chamber <br /> The pump chamber also requires monitoring once every three years or the time of <br /> problem,complaint or failure. Inspection should include checking the dose rate, volume <br /> and frequency. <br /> Warning: The dose chamber may fill due to flow continuing during pump <br /> malfunction or power outages. One large dose when the power comes on or <br /> when the pump is repaired may cause the dispersal system to have problems. <br /> In this situation, the pump chamber should be pumped by a licensed pumper <br /> before pump cycling begins or other measures shall be used to dose the <br /> component with only the proper amount of influent. This may include <br /> manual operation of the pump controls until such time the pump chamber <br /> has reached its normal level. <br /> Septic tank and Pump chamber risers,access risers and covers should be inspected for <br /> water tightness and soundness. Access openings used for service and assessment shall be <br /> sealed watertight upon the completion of service. Any opening deemed unsound, <br /> defective, or subject to failure must be replaced. Exposed access openings greater than fl- <br /> inches in diameter shall be secured by an effective locking device to prevent accidental or <br /> unauthorized entry to the tank <br />