TANK CLEANING AND REPAIRS TO WATER SUPPLY LINES IN DOLPHIN HILL UNDER GE (NB) VISAKHAPATNAM

Amount

M & L for cleaning and degermination inside the RCC/PVC water storage tanks of capacity not exceeding 500 ltr of any description and in any position comprising the following seven stage cleaning and sterilization of water tanks through bacteriological treatment by using TERBAC G5/INCHLOR-5/NB-10, TERBAC G65/INOXI-60/NB-69 and ultra violet rays complete all as specified and as directed. (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 using TERBAC G10/INCHLOR-5/NB-10, (a laboratory tested branded chemical) and scrubbing the walls of the tanks. (c) 3rd stage: Cleaning with fresh water by high speed jet pump with pressure of 5 PSI. (d) 4th stage Sterilization by using TERBAC G5/INCHLOR-5/NB-10, (a Laboratory certified branded halogen compound) for first bateria screening. (e) 5th stage: Cleaning the floor of the water tank by heavy duty industrial vaccum cleaner. (f) 6th stage: Sterilizing method by using ultra violet ray Ejector covering 360 degree with in the tank and kills all suspended bacteria for 2nd bacteria screening. (g) 7th Stage: Cleaning and sterilize the floor of the water tank by using laboratory certified branded strong oxidizing agend TERBAC G65/INOXI-60/NB-69 for third bacteria screening. Note:- (i) Test certificate of TERBAC G65/INOXI-60/NB-69 etc from Government Laboratory mentioning suitability for sterilization should be submitted to the Dept before using for Sterilization. (ii) Cleaning of tank shall only be carried by the authorised service provider of the material used. Necessary approval shall be obtained from GE before cleaning of the tanks, (iii) After cleaning of the tank necessary completion certificate confirming the completion of sterilization of water tank shall be issued by the service provider and a sticker shall be fixed on the tank duly mentioning the date of cleaning and name of site etc) (iv) Writing on the out side of the tank “CLEANDED ON – (Date)” with synthetic enamel paint with letter size 10cm high in white color, over a black background of appropriate size

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 for RCC overhead tanks of capapcity exc 2000 & n.exc 5000 Ltrs complete ditto

M & L for cleaning of PVC Building Loft tanks of capacity n.exe. 250 litres situated at various places by removing the float valve of any size carefully and keeping it safe for refixing, inspecting the float valves, check nuts and nipples for serviceability, inspecting the tanks for cracks if any, bailing out the accumulated water at the bottom and removing the complete silt from the bottom tank and thereafter cleaning and rubbing inner surface using bleaching powder and wire brushes, taking out all scales, dirt etc, and cleaning of tank with fresh water including writing on the out side of the tank “CLEANDED ON – (Date)” with synthetic enamel paint with letter size 10cm high in white color, over a black background of appropriate size, refixing of float valve and check nuts etc including dismantling and reconnecting and refixing in position complete all as specified and directed

M & L for cleaning of PVC water storage tanks of capacity n.exe. 500 litres situated at various places by removing the float valve of any size carefully and keeping it safe for refixing, inspecting the float valves, check nuts and nipples for serviceability, inspecting the tanks for cracks if any, bailing out the accumulated water at the bottom and removing the complete silt from the bottom tank and thereafter cleaning and rubbing inner surface using bleaching powder and wire brushes, taking out all scales, dirt etc, and cleaning of tank with fresh water including writing on the out side of the tank “CLEANDED ON – (Date)” with synthetic enamel paint with letter size 10cm high in white color, over a black background of appropriate size, refixing of float valve and check nuts etc including dismantling and reconnecting and refixing in position complete all as specified and directed

M & L for cleaning of PVC water storage tanks of capacity exc 500 liters but n.exe. 1000 litres situated at various places by removing the float valve of any size carefully and keeping it safe for refixing, inspecting the float valves, check nuts and nipples for serviceability, inspecting the tanks for cracks if any, bailing out the accumulated water at the bottom and removing the complete silt from the bottom tank and thereafter cleaning and rubbing inner surface using bleaching powder and wire brushes, taking out all scales, dirt etc, and cleaning of tank with fresh water including writing on the out side of the tank “CLEANDED ON – (Date)” with synthetic enamel paint with letter size 10cm high in white color, over a black background of appropriate size, refixing of float valve and check nuts etc including dismantling and reconnecting and refixing in position complete all as specified and directed

S & F 100 litres capacity, rotational moulded polyethylene loft water storage tanks, double layer construction ,100% vergin FDA grade material, ISI marked ,(Horizontal with closed top), hoisted and fixed in position including taking down old unserviceable one complete all as specified in SSR Part I and as directed.

S & F 500 litres capacity rotational moulded polyethylene water storage tanks, double layer construction, ISI marked (Cylindrical vertical with closed top), hoisted and fixed in position including taking down old unserviceable one as specified in SSR Part I and directed.

S & F 750 litres capacity rotational moulded polyethylene water storage tanks , double layer construction, ISI marked (Cylindrical vertical with closed top), hoisted and fixed in position including taking down old unserviceable one as specified in SSR Part I and directed.

S & F 1000 litres capacity rotational moulded polyethylene water storage tanks , double layer construction, ISI marked (Cylindrical vertical with closed top), hoisted and fixed in position including taking down old unserviceable one as specified in SSR Part I and directed.

S & F in repair PVC over head tank cover suitable for tank of capacity n.exc 250 Litres complete all as specified and directed.

S & F in repair PVC over head tank cover suitable for tank of capacity exc 250 but n.exc 500 Litres complete all as specified and directed.

S & F in repair PVC over head tank cover suitable for tank of capacity exc 500 but n.exc 1000 Litres complete all as specified and directed.

S & F in repair PVC over head tank cover suitable for tank of capacity exc 1000 but n.exc 2000 Litres complete all as specified and directed.

S & F in repairs, mild steel hinging device for over head tank cover including locking piece complete all as specified and directed.

S & F in repairs, 15 mm bore, gun metal Gate valves, with iron wheel head, screwed both ends for iron pipe complete all as specified and directed.

S & F in repairs, 20 mm bore, gun metal Gate valves, with iron wheel head, screwed both ends for iron pipe complete all as specified and directed.

S & F in repair 25 mm bore, gun metal, globe or Gate valves with iron wheel head, screwed both ends for iron pipe complete all as specified and directed.

S & F in repair 32 mm bore, gun metal, globe or Gate valves with iron wheel head, screwed both ends for iron pipe complete all as specified and directed.

S & F in repairs, 40 mm bore, gun metal Gate valves, with iron wheel head, screwed both ends for iron pipe complete all as specified and directed.

S & F in repairs, 50 mm bore, gun metal Gate valves, with iron wheel head, screwed both ends for iron pipe complete all as specified and directed.

Taking up or down 15mm bore, Steel tubing and connections and keeping serviceable pipes in safe custody for reuse in the work after and including cleaning as directed.

Taking up or down 20mm bore, Steel tubing and connections and keeping serviceable pipes in safe custody for reuse in the work after and including cleaning as directed.

Taking up or down 25 or 32 mm bore, Steel tubing and connections and keeping serviceable pipes in safe custody for reuse in the work after and including cleaning as directed.

Taking up or down 40 or 50mm bore, Steel tubing and connections and keeping serviceable pipes in safe custody for reuse in the work after and including cleaning as directed.

Refixing of 15mm bore old serviceable steel tubing and connections in new or old position with new fittings complete to walls and ceilings or laid in floors, etc complete as directed. (Note: Serviceable pipe shall be reused as obtained from serial item No. 22 above)

Refixing of 20mm bore old serviceable steel tubing and connections in new or old position with new fittings complete to walls and ceilings or laid in floors, etc complete as directed. (Note: Serviceable pipe shall be reused as obtained from serial item No. 23 above)

Refixing of 25 to 32mm bore old serviceable steel tubing and connections in new or old position with new fittings complete to walls and ceilings or laid in floors, etc complete as directed. (Note: Serviceable pipe shall be reused as obtained from serial item No. 24 above)

Refixing of 40 or 50mm bore old serviceable steel tubing and connections in new or old position with new fittings complete to walls and ceilings or laid in floors, etc complete as directed. (Note: Serviceable pipe shall be reused as obtained from serial item No. 25 above)

Supply, laying, connection and testing, 15mm bore, Steel water tubing, galvanised, medium grade with all fittings and fixed complete to walls and ceilings or laid in floors, etc complete all as specified and directed.

Supply, laying, connection and testing, 20mm bore, Steel water tubing, galvanised, medium grade with all fittings and fixed complete to walls and ceilings or laid in floors, etc complete all as specified and directed.

Supply, laying, connection and testing, 25mm bore, Steel water tubing, galvanised, medium grade with all fittings and fixed complete to walls and ceilings or laid in floors, etc complete all as specified and directed.

Supply, laying, connection and testing, 32mm bore, Steel water tubing, galvanised, medium grade with all fittings and fixed complete to walls and ceilings or laid in floors, etc complete all as specified and directed.

Supply, laying, connection and testing, 40mm bore, Steel water tubing, galvanised, medium grade with all fittings and fixed complete to walls and ceilings or laid in floors, etc complete all as specified and directed.

Supply, laying, connection and testing, 50mm bore, Steel water tubing, galvanised, medium grade with all fittings and fixed complete to walls and ceilings or laid in floors, etc complete all as specified and directed.

Taking up or down 16mm outer dia, CPVC pipe and connections and keeping serviceable pipes in safe custody for reuse in the work after and including cleaning as directed.

Taking up or down 20mm outer dia, CPVC and connections and keeping serviceable pipes in safe custody for reuse in the work after and including cleaning as directed.

Taking up or down 25 or 32 mm outer dia, CPVC and connections and keeping serviceable pipes in safe custody for reuse in the work after and including cleaning as directed.

Refixing of 16mm outer dia old serviceable CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings and connections in new or old position with new fittings complete to walls and ceilings or laid in floors, etc complete as directed. (Note: Serviceable pipe shall be reused as obtained from serial item No. 36 above)

Refixing of 20mm outer dia old serviceable CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings and connections in new or old position with new fittings complete to walls and ceilings or laid in floors, etc complete as directed. (Note: Serviceable pipe shall be reused as obtained from serial item No. 37 above)

Refixing of 25 to 32mm outer dia old serviceable CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings and connections in new or old position with new fittings complete to walls and ceilings or laid in floors, etc complete as directed. (Note: Serviceable pipe shall be reused as obtained from serial item No. 38 above)

Supply, laying, connection and testing, 16mm outer dia of CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified and directed

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

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

Supply, laying, connection and testing, 32mm outer dia of CPVC pipes SDR 11 & Plain CPVC SDR 11 fittings on walls/ceiling or laying in floors complete all as specified and directed

S & F in repair 15 mm bore, Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed. (Minimum weight - 142 gms) complete all as specified and directed.

S & F in repairs, 20 mm bore, Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed. (Minimum weight - 210 gms) complete all as specified and directed.

S & F in repairs, 25 mm bore, Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed. (Minimum weight - 455 gms) complete all as specified and directed.

S & F in repairs, 25 mm bore, ball brass valves, high pressure, with polythene float and fly nuts, screwed for iron pipe or brass ferrule complete all as specified and directed.

S & F in repair epoxy coated Aluminium rod suitable for 15mm bore Ball valve complete all as specified and directed.

S & F in repair epoxy coated Aluminium rod suitable for 20mm bore Ball valve complete all as specified and directed.

S & F in repair epoxy coated Aluminium rod suitable for 25mm bore Ball valve complete all as specified and directed.

S & F in repair high density plastic ball suitable for 15mm bore Ball valve complete all as specified and directed.

S & F in repair high density plastic ball suitable for 20mm bore Ball valve complete all as specified and directed.

S & F in repair high density plastic ball suitable for 25mm bore Ball valve complete all as specified and directed.

Fixing only in repairs, 15/20/25 mm bore, Ball valves high pressure of PTMT with epoxy coated Aluminium rod & high density plastic ball screwed for iron pipe and fixed. (Minimum weight - 142/210/455 gms) complete all as specified and directed. (Note: Old serviceable ball valves shall be re-fixed at site after minor adjustment)

M & L for repairing of leakages in any position from pipe joints of any bore, air vent pipes, side faces of tank, inlet/outlet junction point of tank and pipes with suitable materials such as washer /taflon tape/solvent etc including dismantling /disconne- cting the pipe/tank etc to facilitate repair work and re-fixing and re-connecting in existing position (if required) complete all as directed by the Engr-in-Charge.

Cleaning of air/dust/water blockages in the internal/external water supply lines concealed or fixed on the wall or floor surfaces by dismantling the fitting such as taps, valves,unions etc to facilitate/stimulate clearance of blockages/airlocks and Re fixing the dismantled items after clearance of blockage/airlocks complete all as specified and as directed. .

M & L for cleaning shrubs or bushes from buildings, mud and other materials accumlated not exceeding 10cm depth on terraces etc and complete removing the plants from the surfaces of building/ shaft area including with complete roots, applying recommended chemical to prevent further growth as directed and removing all the materials obtained by suitabable means to outside MD Land including cleaning of the tarraces area etc with water completeas directed complete all as specified and as directed

S & F in repairs, 25 mm bore, Ball cock Chutki of PTMT and fixed complete all as specified and directed. (Make: Prayag Cat No. 313 or equivalent as per List of manufacturer's)

S & F in repairs, 20 mm bore, Ball cock Chutki of PTMT and fixed complete all as specified and directed. (Make: Prayag Cat No. 312 or equivalent as per List of manufacturer's) “(General Notes for all items above: (i) Prior to schedule tank cleaning of any block concerned user has to informed by the contractor/supervisor regarding any inconvenience occured in water supply. Contractor has to arranged potable water from outside source to the occupant for the affected period witout any extra Cost. (ii) Contractor either himself/ themselves or depute his/their supervisor to take complaints from IVRS system during office hours i.e at 9 AM to 5 PM. After completion of the complaints, get it checked by JE/ Engr-in-charge to update status in IVRS system. (iii) The work has to be carried out upto 4th floor building and the rate quoted shall deemed to be inclusive of necessary provision for this aspect accordingly (iv) Contractor has to provide services of the plumber for 24x7 hrs during contract period including all holiday. Nothing extra shall be paid on account of the services of plumber 24x7 hrs.)

K & K CONSTRUCTIONS (BID ID -3120477)

bhavani constructions (BID ID -3120455)

M B CONSTRUCTIONS (BID ID -3121922)

S N N INFRAS (BID ID -3120491)

SRI SRK ENGINEERS (BID ID -3121741)

SRI RAJA RAJESWARI ENTERPRISES (BID ID -3121927)

S RAMAKRISHNA RAJU (BID ID -3120615)

SOUTHERN BUILDERS (BID ID -3122354)

SRI SAI MANIKANTA ENTERPRISES (BID ID -3121906)