8307 CLEANING OF O/H, U/G RESERVOIRS AND BUILDING SERVICE TANKS INCLUDING REPLACEMENT OF WATER TANK AND CONNECTED WORK OF BLDGS UNDER HQ MNA AND HQ WNC AT NAVAL DOCKYARD UNDER GE KUNJALI

Seven (7) stages of cleaning process (a) First stage is to draining out the reserved water by using exit valve or high capacity pump of dewareing system. (b) Second stage is cleaning all the algae formation inside the tank removing all the scale,dirt,mud inside the tank by using TERBAC G10/ SODIUM HYPOCHLORIDE Chemical complete. (c) Third stage is scrubbing the walls and floor with mechanized scrubber & fresh water cleaning by high speed jet pump (rotary & flat) to remove all scaling, algae and other formed particles on internal surfaces of the tank completeley. (d) Fourth stage is first bacteria screening i.e. de-gernification by using TERBAC G5/ TANK SAN chemical complete. (e) Fifth stage is cleaning the floors of the water tank by heavy duty industrial vaccum cleaner and sludge sucker maximum 1200W with suitable heaby duty rugged motor to make the sump free of any foreign and loose particles of any nature. (f) Sixth stage is the second bacteria screening and sterilisation method by using UV RAYS by heavy duty UV radiation which shall have 360 degree of sterlization with in the tank and kills all suspended bacteria.(The radiation shall portable and effective for sterlization of drinking water tanks for dimination of floating and suspended bacteria)

(g) Seventh stage of cleaning and third bacteria screening is to sterilize the floor and wall of the water tank by using laboratory certified branded strong oxidizing agent TERBAC G65/ Inoxi-60/NB-69 or equivalent any non toxic bio-degradable eco-friendly anti-bacterial agent certified by a Govt approved laboratory to disinfect the tank from all harmful pathogans.ote:-(i) Entire T&P should be arranged by the contractor at their own.Only electric power & water shall be supplied by MES at all stipulated rate.(ii) "Date of cleaning" should be written over the outer surface of tank by synthetic enamel paint with lettering not less than 100mm height. (iii) All safety equipments required like safety helmets, Gumboots, safety belt, mask, safety googles and necessary insurance of safety of working labours to execute the work is responsibility of the contractor and rates quoted shall be deemed to be inclusive of the same.(iv) Contractor will submit Govt laboratory test certificate of TERBAC-G%, TERBAC-G10 and TERBAC G65, SODIUM HYPOCHLORIDE, TANK SAN, Inoxi-60/NB-69.

(a) Upto 800000 ltr capacity

(b) Upto 650000 ltr capacity

(c) Upto 450000 ltr capacity

(d) Upto 225000 ltr capacity

(e) Upto 150000 ltr capacity

(a) Capacity upto 10000 ltr