| 1 | Pre Treatment Process :Supplying, installing, testing and commissioning of a complete pre-treatment system for rainwater harvesting plant of capacity 10 m /hr, comprising first flush arrangement, leaf screen, debris filter, and silt trap/settling chamber (RCC size 2.2 m 1.5 m 1.2 m with baffle walls, effective volume 3.5 4.0 m providing minimum 20 25 minutes detention time), collection chamber ( 1.0 m 1.0 m 1.2 m), including all valves, drain piping, UPVC/HDPE piping, fittings, supports, clamps and accessories, complete in all respects.
| 1.00 | Each Job |
| 2 | Raw Water Feed Pumping system: Supplying, installing, testing and commissioning raw water feed pumping system comprising centrifugal pumps of capacity 10 m /hr at 20 30 m head, complete with electric motors (2 3 HP), base frame, coupling, coupling guard, foundation bolts, suction and delivery connections with Piping: Suction line dia 65 mm Delivery line dia 50 mm, including one working and one standby pump, complete in all respects.
| 2.00 | Each |
| 3 | Pressure Sand/ Multi grade Filtration system Supplying, installing, testing and commissioning pressure sand / multigrade filter suitable for flow of 10 m /hr, fabricated from FRP / MS epoxy coated vessel ( 1000 mm 1600 1800 mm height), complete with graded filter media (pebbles, silica sand, anthracite), internal distribution system with piping Inlet/outlet dia 50 mm, Backwash line dia 65 mm, inlet outlet valves, manhole, pressure gauges and backwash arrangement.Required filtration rate within recommended limits (5 7 m /m /hr) complete in all respects.
| 1.00 | Each |
| 4 | Activated Carbon filtration system Supplying, installing, testing and commissioning activated carbon filtration system suitable for 10 m /hr, including two FRP / MS epoxy coated vessels (one working and one standby), activated carbon media (coconut shell, iodine value 900), internal laterals, pressure gauges, inlet outlet valves and accessories, complete. approved by Engineer In Charge. | 1.00 | Each |
| 5 | Backwashing system Supplying, installing and commissioning complete backwashing system including Air Blower: capacity 30 40 m /hr, with motor,starter, base frame, NRV, silencer, Backwash Water Pump: capacity 15 20 m /hr @ 10 15 m head, with motor,starter, piping and valves Including interconnecting piping, valves and fittings for effective air-water backwashing of filters, complete in all respects.. | 1.00 | Each Job |
