REPAIR REPLACEMENT PVC TANK CLEANING OF PVC TANK ROOF TREATMENT INCLUDING PLUMBING FITTING AND OTHER MISC WORK AT AF STN SINGARSI UNDER AGE I AF SINGARSI

Amount

M&L for Cleaning and removing all scale and dirt, etc, from tanksand from mouths of circulating pipes, etc. not exceeding 500 ltr of any description and in any position comprising the following five stage . (a) 1st stage: Drain out the water by using exit valve or with high capacity dewatering system or any other suitable method approved by Engr-in-Charge. (b) 2nd Stage: Cleaning all the algae formation inside the tank by scrubbing the walls of the tanks. (c) 3rd stage: Cleaning with fresh water . (d) 4th stage: Sterilization by using calcium hypochlorite (bleaching powder). (f) 5th stage: Cleaning with fresh water. After cleaning of the tank, date of cleaning and due date should be clearly mentioned on the tank. (paid Separately) (i) If any complaint regarding tank incomming pipe and outgoing pipe , discharge of water, float valve and pressure of water supply to out going pipe, overflow of tank to corresponding bldg received vide users/stn authority or by this office same shall be carried out within 24 hrs up to 9 months from the date of cleaning of tank. If the contractor failed to carried out the above complaint witin the time mentioned above penality of Rs.500.00 per complaint/day shall be imposed to the contractor and recovery shall be done from the contractor. (ii)Before tank cleaning work to be carried out contractor shall inform the building no. two day in advance in writing to Engr in charge , So that same shall be comunicated to users for storage of water. (iii) Before cleaning work to be carried out contractor shall check the tank, If any breakage /crack of tank shall found ,contractor shall immedetly notify to Engr in charge in written . (iv)After disconnecting or after cleaning of tank found damage or leakage the same shall be replaced by the contractor at his own cost within the 12 hr . If contractor fails to replace the tank within the time period ,the penality of Rs. 500 per day shall be imposed to the contractor till the Replacement of Tank and recovery shall be made from the contractor. (v) Contractor or his agent has to be reported daily at 10.30 am regarding receving the complaint and also to inform about planning of cleaning of tank to be carried out after 48 hrs. Note:Clause (i) to (v) applicable for work carried out under ser item no. 1 to 4 for subject contract.

All as per Serial item No. 01 above but PVC tank of capapcity exc 500 and n.exc 1000 Litres complete ditto.

All as per Serial item No. 01 above but PVC tank of capapcity exc 1000 and n.exc 2000 Litres complete ditto.

All as per Serial item No. 01 above but PVC tank of capapcity exc 2000 and n.exc 5000 Litres complete ditto.

M&L for Writing letters or figures (Block. Roman, Italic or Indian) n exc. 30 cm height,complete all as specified and as directed by Engineer-in-Charge.

M&L for Disconnecting existing 500L tanks, and lowering and hoisting if required reconnecting and re-fixing in position only for roof treament pupose,complete all as specified and as directed by Engineer-in-Charge

M&L for Disconnecting existing 1000L tanks, and lowering and hoisting if required reconnecting and re-fixing in position only for roof treament pupose,complete all as specified and as directed by Engineer-in-Charge

Demolition of cement concrete (unreinforced) in roofs, floors other than ground floors beams staircases, landing, hajjas and similar suspended work, ccomplete all as specified and as directed by Engineer-in-Charge.

M&L for PCC type B0 1:2:4 (12.5 mm Graded stone aggregate) as in roof padding,complete all as specified and as directed by Engineer-in-Charge.

Taking down existing water proofing treatment including cement plaster and cleaning with wire brushes roughening the surface and hacking out dirt, where directed and disposal of rubbish n.exc. 50m distance from the starting point,complete all as specified and as directed by Engineer-in-Charge.

M&L for Rendering 10 mm thick in Cement Mortar (1:3) for screed bed of roof treatment of concrete on fair faces of brick work or concrete surfaces, with WPC @3% by weight of cement, finished even and smooth with using extra cement,complete all as specified and as directed by Engineer-in-Charge. Note:- Supply only water proofing compound shall be measured and paid separately.

Supply only water proofing compound.

M&L for APP based polymeric membrane minimum weighing 3.0kg/sqm and 3mm thick reinforced with polyester non-woven fabric laid on surface applied with bitumenous primer @ 0.25 litres per sqm, by torch application with overlaps 100 mm on the traverse direction and 75 mm on longitudinal direction on existing RCC roof surface and applying one coat of aluminium paint over the top surfaces of membrane @ 0.11 Litres/Sqm,complete all as specified and as directed by Engineer-in-Charge.

Taking up or down 15mm bore tubing and connections of any description including cleaning for refixing or removal to store,complete all as specified and as directed by Engineer-in-Charge.

Taking up or down 20 mm bore steel tubing and connections of any description including cleaning for refixing or removal to store,complete all as specified and as directed by Engineer-in-Charge.

S&F 15mm dia GI tubes (medium grade) with all fitting and fixed complete to walls and ceilings or laid in floors after taking up or down old unserviceable tubing and connections,complete all as specified and as directed by Engineer-in-Charge.

S&F 20mm dia GI tubes (medium grade) with all fitting and fixed complete to walls and ceilings or laid in floors after taking up or down old unserviceable tubing and connections,complete all as specified and as directed by Engineer-in-Charge.

M&L for Re-fixing for 15mm dia old steel tubing and connection in new or old position (wall, ceiling, floor etc) including cleaning, re-running the old threads etc complete after taking up or down old unserviceable tubing and connections,complete all as specified and as directed by Engineer-in-Charge.

M&L for Re-fixing for 20mm dia old steel tubing and connection in new or old position (wall, ceiling, floor etc) including cleaning, re-running the old threads etc complete after taking up or down old unserviceable tubing and connections,complete all as specified and as directed by Engineer-in-Charge.

Supplying and laying including all fittings of CPVC pipes SDR 11 & Plain CPVC SDR 11 of outer dia 20mm fittings on walls/ceiling or laying in floors, complete all as specified and as directed.

Supplying and laying including all fittings of CPVC pipes SDR 11 & Plain CPVC SDR 11 of outer dia 25mm fittings on walls/ceiling or laying in floors,complete all as specified and as directed.

Taking up or down water tank of capacity 500lt and removing to store,complete all as specified and as directed by Engineer-in-Charge.

Taking up or down water tank of capacity 1000lt and removing to store,complete all as specified and as directed by Engineer-in-Charge.

S&F 500 Ltrs rotational moulded polythene water storage tanks (cylindrical vertical with closed top) of 3 layer white colour, hoisted and fixed in position all as specified in SSR Part-l, after dismantling of old water tank (PVC) and Dismantling water tanks and removing to outside defence area,complete all as specified and as directed.

S&F 1000 Ltrs rotational moulded polythene water storage tanks (cylindrical vertical with closed top) of 3-layer white colour, hoisted and fixed in position all as specified in SSR Part-l, after dismantling of old water tank (PVC) and Dismantling water tanks and removing to outside defence area,complete all as specified and as directed.

S& F in repair 15mm dia Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed,complete all as specified and as directed.

S&F in repair 20mm dia Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed,complete all as specified and as directed.

S&F PTMT ball valves high pressure with epoxy coated aluminium rod & high density plastic ball screwed for 20mm die pipes all as specified and directed as in repair, (minimum weight 210 gms),complete all as specified and as directed.

DANATION CONSTRUCTIONS (BID ID -3332738)

M/S SINGH ENTERPRISE (BID ID -3332772)

M/S Subhadip Enterprise (BID ID -3332805)

P .BANERJEE AND CO (BID ID -3333347)

M/S New Builders Corporation (BID ID -3333414)

M/S MBS TRADING CO (BID ID -3332970)

M/S AMARNATH AGARWALLA (BID ID -3332884)