tender for repair maintenance of chemical earthing and cleaning of septic tank manholes and sewerage line at 42 annual repair-cleaning and repair of septic tank, manholes and sewerage line :- cleaning of sewege/sludge/silt/dirty water/solid waste etc of 25 users septic tank and disposal of the same within a lead of 50 to 150 mtr at a safe place incl removing the pit cover and placing the same in its original position without damaging the pit cover & frame and complete work shall be executed as per direction of eic. cleaning of sewege/sludge/silt/dirty water/solid waste etc from manhole incl removing the manholes cover, disposal of the same within a lead of 50 to 150 mtr at a safe place incl removing the pit cover and placing the same in its original position without damaging the pit cover & frame and complete work shall be executed as per direction of eic. repair and maint of manhole incl cleaning sewage/sludge/silt/dirty water/solid weste etc from manhole incl removing the manhole cover, disposal of the same within a lead of 50 to 150 mtr and placing the manhole cover in the original position without damaging the manhole cover & frame and supply of all necessary materials like cement, sand, equipment etc required for the completion of job as per direction of eic. removal of blokage of the underground sewer line (dia 100mm or above) with split bamboos/flexible ms rod and labour after taking out the manhole cover etc. as may be required incl placement of the cover in its original position on the frame without damage to both the frame and the cover (after completion of the work) incl supply of all materials required for the completion of job as per directed of eic. repair and maint of underground sewer line and replacement of broken pvc (swr) dia 100mm incl necessary earth work manually and the same be covered in its original position after completion of the work incl supply of all materials, equipment etc required for the completion of job as per directed of eic.