REPAIRS AND CLEANING OF SEWAGE LINE, MANHOLE, SEPTIC TANKS AT CABS, INS TANAJI, NOFRA AND NSB UNDER GE (NW) MANKHURD.

Cleaning of old septic tank including internal pipe connections etc by removing accummulated sludge, silt and brick bats and waste materials including sludge water and removing to a distance n.exc 50 mtr deposited the same in excavated pit, of appropriate size and covering the pit with excavated earth including disinfecting the covered pit by sprinkling bleaching powder @ 250 gm (approx) in each pit including excavation of earth pit complete. (Note :- Excavation and covering the pit with earth and spreading of bleaching powder shall deem to be included in the unit rate).

Taking out sludge from bottom level of sump either by manually or mechanically cleaning the entire depth and washing down with clean water and removing to a distance exe 50m and n exe 100m and burried under earth pits duly covering and taking all precaution so that there is no health hazard occurs and all as directed (Note :- Excavation of pit and covering the pit with earth shall deem to be included in the unit rate).

Cleaning of sewage line including manhole with bamboo splits or any other suitable device by taking out blocked accumulated sludge and all foreign material complete from man holes and removing the same to a distance not exc 50 m depositing sludge in excavated pits covering the pit with excavated earth and disinfecation the covered pit by sprinkling bleaching powder @ 250 gm (approx) in each pit and excavation of pit complete as required including testing for easy flow of effluent by passing water for 100 mm bore SWG drain pipe, complete all as specified and as directed. (Note :- Excavation and covering the pit with earth and spreading of bleaching powder shall deem to be included in the unit rate).

-Ditto- as item above but 150mm bore complete

-Ditto- as item above but 200mm bore complete

-Ditto- as item above but 300mm bore complete

Cleaning of blocked WC, floor trap, Nahani trap, gully trap etc. by means of hand pump, removing alll sludge, brick bats, foreign particles etc. and finally cleaned the WC, floor trap, Nahanitrap, gully trap with cleaned water.

M&L for dewatering of septic tank/soak well by using dewatering pumps sets of 7.5 HP capacity having dia of suction & delivery pipe as 4" & 5" respectively complete all as directed by the Engineer -in-charge

Cleaning and removing all side and scales and dirt, etc from PVC tanks having capacity 500 lts at different locations and heights and wash down internal surface thoroughly with bleaching powder and fresh water including removal of tank cover , float valve carefully , refixing the same in position and write the date of cleaning on tank surface complete all as specified and as directed.

Cleaning and removing all side and scales and dirt, etc from PVC tanks having capacity 1000 lts at different locations and heights and wash down internal surface thoroughly with bleaching powder and fresh water including removal of tank cover , float valve carefully refixing the same in position and write the date of cleaning on tank surface complete all as specified and as directed.