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| 1 | M&L for dewatering, cleaning of Over Head reservoir on 18/21 Mtr staging height 30,000 Gallon capacities with high pressure water jet to remove all small masses (settled particles), algae and dirt and removal of dirty water alongwith sludge and disposal of the same to a safe distance and including scrubbing of internal surfaces and washing with bleaching powder solution, water, etc and writing the date of cleaning in white letters in black background of height two inches complete all as specified and as directed. |
| 2 | All as per item No. 01 here-in-before but for 10,000 Gallons capacity over head reservoirs on 12 mtr staging. |
| 3 | All as per item No. 01 here-in-before but for 7,000 Gallons capacity over head reservoirs on 20 mtr staging. |
| 4 | M&L for dewatering, cleaning of underground sumps of 1,00,000 Gallons capacities with high pressure water jet to remove all small masses (settled particles), algae and dirt and removal of dirty water alongwith sludge and disposal of the same to a safe distance and including scrubbing of internal surfaces and washing with bleaching powder solution, water, etc and writing the date of cleaning in white letters in black background of height two inches complete all as specified and as directed. |
| 5 | All as per item No. 04 here-in-before but for Underground sump of 50,000 Gallons capacity |
| 6 | All as per item No. 04 here-in-before but for Underground sump of 30,000 Gallons capacity |
| 7 | All as per item No. 04 here-in-before but for Underground sump of 10,000 Gallons capacity |
| 8 | All as per item No. 04 here-in-before but for Underground sump of 7,000 Gallons capacity |
| 9 | M&L for dewatering, cleaning of service tanks / PVC water tank 25000 Ltrs capacity to remove all small masses (settled particles), algae and dirt and removal of dirty water alongwith sludge scrubbing the dirts from tank with disposal of the same to a safe distance and finally washing with bleaching powder solution, water,etc and writing the date of cleaning in white letters in black background of lettrs height two inch with stickers complete all as specified. |
| 10 | All as per item No. 09 here-in-before but for PVC water tank 5,000 Ltrs capacity |
| 11 | All as per item No. 09 here-in-before but for PVC water tank 2,000 Ltrs capacity |
| 12 | All as per item No. 09 here-in-before but for PVC water tank 1,000 Ltrs capacity |
| 13 | All as per item No. 09 here-in-before but for PVC water tank 750 Ltrs capacity |
| 14 | All as per item No. 09 here-in-before but for PVC water tank 500 Ltrs capacity |
| 15 | All as per item No. 09 here-in-before but for PVC water tank 300 Ltrs capacity |
| 16 | M&L for preparation of old painted external surfaces by brooming down, scraping distempered and painted surface by scrubbing with steel wire brush, and applying two coat of cement base paint for the Underground sumps of any size and capacity all as specified. |
| 17 | Supply and Fix rotational moulded polythylene water storage tank three layer cylindrical (vertical with closed top) hoisted and fixed in position of capacity 500 Ltrs including connecting up with the existing water lines and dismantling and removing the old one all as specified and directed. |
| 18 | All as per item No. 17 here-in-before but 750 Ltrs capacity |
| 19 | All as per item No. 17 here-in-before but 1000 Ltrs capacity |
| 20 | All as per item No. 17 here-in-before but 2000 Ltrs capacity |
| 21 | Supply and fix in repairs ball valves high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball screwed for iron pipe for 20 mm bore pipe (minimum weight 210 gm). |
| 22 | All as per item No. 21 here-in-before but pipe of 25 mm bore (minimum weight 455 Gms). |
| 23 | Supply and fix nipple 20 mm size suitable for PVC/HDPE water tank (minimum weight 45gms 20 mm / 65 gms for 25 mm) complete. |
| 24 | All as per item No. 23 here-in-before but size 25 mm |
| 25 | Supply only high strenght calcium based granular chlorination chemical having 65 % to 70 % available chlorine factory sealed pack to achive the desire PPM level of chlorine and maintain the daily consumption records. The chemical packed in sealed container with anti corrosion and anti scaling agents all as specified & directed. |
| 26 | Supply only bleaching powder surface disinfectant chemical having 34 % to 40 % available chlorine factory sealed pack to achive the desire PPM level of chlorine and maintain the daily consumption records. |
| 27 | Material and Labour for collecting water sample from different wells in AFAC Coimbatore, packing it safely in sterlized bottles as required quantity and send it to approved govt laboratory (TWAD - Tamilnadu water and drainage board test lab or other approved labs) for testing of potable water/raw water as per IS 10500 with following parameters colour, odour, turbidity, conductivity, TDS, PH, alkalinity, hardness, calcium, magnessium ,iron, manganese, ammonia, nitrate, nitrite, chloride, fluoride, sulfite, phosphate, silica, free chlorine, standard plate count, totalcoliform, fecalcoliform, streptococci and special element tests all as specified & directed. |
| 28 | Supply and fix in replacement gun metal gate valve heavy duly ISI marked with iron wheel head screwed both ends for iron pipes 25 mm bore dia all as specified and directed. |
| 29 | All as per item No. 28 here-in-before but 40 mm size all as specified and directed. |
| 30 | All as per item No. 28 here-in-before but 50 mm size all as specified and directed. |
| 31 | Supply only OT solution regent for chlorine level testing in 500 ml jar all as directed |
| 32 | Supply and mix food grade RO antiscalants in liquid form to control inorganic scales of calcium, magnesium, barium, strontium, fluoride, Iron and silica and antiscalants ensures above 80 % reduction in scaling tendency for drinking water factory sealed pack compleate. |
| 33 | S&F aluminium alloy wire cloth, 0.45 mm nominal dia of wire and average width of aperture 1.40 mm and fixed with aluminium wire staples with aluminium frame around the wire cloth for Underground (UG) / Over head tank (OH) water tank ventilater / openings complete all as specified. |
| 34 | S&F water level indicator device 150 mm size digit display with ultrasonic sensor with LED display indicator incl all accessories required on site such as nut, bolts, flexible wire etc complete all as specified. |
| 35 | Supply and laying of CPVC pipes SDR-11 of outer diameter 50 mm & Plain CPVC SDR-11 fittings (such as bend, elbow, tees, connectons, short pieces, bak nuts, union, caps and plugs etc) on wall / ceiling or laying floor / trenches including taking down old unserviceable pipe line complete all as specified and directed. |
| 36 | All as per item No. 35 here-in-before but outer diameter of pipe 25 mm. |
| 37 | All as per item No. 35 here-in-before but outer diameter of pipe 20 mm. Please Enable Macros to View BoQ information |
