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

M & L for cleaning and degermination inside the RCC/PVC water storage tanks of capacity exc 250 ltr but 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.