Roof Top Rain Water Harvesting What is Roof Top Rain Water Harvesting? Rooftop Rain Water Harvesting is the technique through which rain water is captured from the roof catchments and stored in reservoirs. Harvested rain water can be stored in sub-surface ground water reservoir by adopting artificial recharge techniques to meet the household needs through storage in tanks. The Main Objective of rooftop rain water harvesting is to make water available for future use. Capturing and storing rain water for use is particularly important in dryland, hilly, urban and coastal areas. In alluvial areas energy saving for 1m. rise in ground water level is around 0.40 kilo watt per hour. Need for Rooftop Rain Water Harvesting 1. To meet the ever increasing demand for water 2. To reduce the runoff which chokes storm drains 3. To avoid flooding of roads 4. To augment the ground water storage and control decline of water levels 5. To reduce ground water pollution 6. To improve the quality of ground water 7. To reduce the soil erosion 8. To supplement domestic water requirement during summer, drought etc. Advantages of Rain Water Harvesting 1. Provides self-sufficiency to your water supply 2. Reduces the cost for pumping of ground water 3. Provides high quality water, soft and low in minerals 4. Improves the quality of ground water through dilution when recharged to ground water 5. Reduces soil erosion in urban areas 6. The rooftop rain water harvesting is less expensive 7. Rainwater harvesting systems are simple which can be adopted by individuals 8. Rooftop rain water harvesting systems are easy to construct, operate and maintain 9. In hilly terrains, rain water harvesting is preferred 10. In saline or coastal areas, rain water provides good quality water and when recharged to ground water, it reduces salinity and also helps in maintaining balance between the fresh-saline water interface 11. In Islands, due to limited extent of fresh water aquifers, rain water harvesting is the most preferred source of water for domestic use 12. In desert, where rain fall is low, rain water harvesting has been providing relief to people

The “water positive” goes beyond the concept of net-zero water usage. It aims to return more water to freshwater sources than is withdrawn. Being water positive involves actively contributing to water conservation and replenishment. Companies and organizations that adopt water-positive practices take steps to minimize their water footprint and actively replenish water resources. This commitment helps address environmental and climate concerns related to water scarcity and quality

Rainwater Harvesting Filters. FL 100 (Rooftop Area upto 1200 Sq. Ft) The characteristic features of FL Series Dual Intensity RWH Filter is its capacity to take up the load up to 10 to 110 square meters of Roof area with variable intensity of rainfall of 5 to 75 mm/ hour with a discharge capacity of 10 to 105 Liters per minute. This filter can be conveniently used for Harvesting Rainwater for Individual households, Schools, and Smaller Roof area Buildings. • Item Code: FL-100 Suitable up to area: 110 SQMTRS Max: Intensity of Rainfall: 75 mm/hr Working Principle : Cohesive Force & Centrifugal force Operating Pressure: Less than 2 feet of head (0.060kg/cm2) Capacity: 105 LPM Filter Element: SS-304 Screen Mesh Size: 250 Microns Inlet: 90 MM Clean Water Outlet: 63 MM Drain Outlet: 90 MM Housing: High Density Polyethylene Efficiency of Filter: Above 90% Source of Power: Gravity

The Woltman Type Flow Meter by Allegiance India™ is a high-precision, heavy-duty water meter designed for large-scale water consumption measurement. Ideal for industrial, commercial, and municipal applications, this meter features a horizontal turbine (Woltman) mechanism that ensures accurate and efficient water flow monitoring even under high-pressure conditions. Key Features: ✅ Woltman Type with Horizontal Turbine – Ensures high accuracy and durability ✅ Flanged End Connection – Easy installation in pipelines ✅ Magnetic Transmission – Reduces wear and increases operational lifespan ✅ ISO 4064 Certified – Complies with global accuracy and quality standards ✅ Low-Pressure Drop – Efficient water flow measurement with minimal resistance ✅ Corrosion-Resistant Body – Durable construction for long service life ✅ Available in Multiple Sizes – Ranges from 50mm to 600mm Applications: 🏭 Industrial Water Supply – Manufacturing plants, chemical industries 🏢 Commercial & Municipal Water Distribution – Smart city projects, large buildings 🚰 Irrigation Systems – Efficient water management for agriculture 💧 Water Treatment Plants – Accurate monitoring of treated water supply

Allegiance Digital Electromagnetic Water Flow Meter, 50 mm (2 Inch) simply known as Electro Mag flow meter is a volumetric flow meter that is ideally used for wastewater applications and other applications that experience low pressure drop and with appropriate liquid conductivity required. The device doesn’t have any moving parts and cannot work with hydrocarbons and distilled water. Mag flow meters are also easy to maintain. Magnetic flow meters work based on Faraday’s Law of Electromagnetic Induction.

"Injection well " New & Innovative Technology for Rainwater Harvesting System Products that are precisely coordinated, scientifically designed all-in-one Rainwater Harvesting solutions and dedicated service. 'Allegiance Water Management ' also undertakes turnkey projects in corporate sector/ industries/ government undertaking etc. and is capable of handling large projects right from Rain Water Harvesting design, supply and installation to providing end- to-end solutions. 'Allegiance' is equipped with a dedicated and experienced team of engineers, technician, workmen along with special installation equipment's, drilling rigs, civil structures etc. Highly trained technical team conducts the Rainwater Harvesting technical survey by studying the layout of the site and building. Existing piping system of rainwater and storm drains are studied. Gradient and landscape of the site and building are obtained. Designing and installation of innovative customized system is done with precise scientific approach. These solutions include: diverting existing rainwater pipes, deployment of underground storage, auto pumping system, piping, filtering, storage, utilization etc. Designing and construction of ground water recharging structures. Complete solutions for water neutrality establishment projects.

Digital Water Level Recorder (DWLR) which can be used in piezometer wells as well as tubewells for measurement of water level data. Non-contact devices in Water level measurement are the next generation products in the water sector. Statometer uses an indigenously designed patented signal processing algorithms of acoustic waves for accurate measurements. Ideal solution for *Real-time measurement of fluctuations in water table *Central Ground Water Board(CGWB) NOC compliances *Determining efficiency of rain water harvesting systems *Planning crops and drought forecasting in agriculture Data communications GPRS/GSM Data visualization - Graphs & list view of data collected - Analytical tools for trend analysis - Location of wells on Google maps User configurable features - Roles and accessibility - Frequency setup* - Remote triggering* Data download options - CSV and xlsx format - Reports

The all-welded wedge wire screens are made from two elements the V-shaped wedge wire is helically wound around an array of internal longitudinal support rods. Each intersection of wire and rods is automatically resistance welded, creating a very strong cage-like cylinder with one continuous slot spiraling along its full length. The gap between the wires, also called slot or aperture, is manufactured to customer specification, allows water to flow from the surrounding aquifer into the screen, The slots can be very narrow to keep out fine sand grains, which could otherwise damage your pump through abrasion. NON PLUGGING SLOTS V-shaped wire creating, two point particle contact preventing plugging. Inwardly opening slots (in-flow) preventing sand particles from remaining lodged in screen. The V-shaped wire enhances well efficiency, ensures consistent pumping and long well life. LARGE OPEN AREA The continuous slot wedge wire offers higher open area than any other type of screens used for water well applications, such as slotted pipe, punched pipe, louver screens. Wedge wires for each application are selected to maximize open area, resulting in the lowest possible cost for water extraction. TECHNICAL DETAILS Available sizes from 1" (25 mm) to 22" (560 mm) Water well screens designed to suit well depth Available in slots sizes from 0.15 mm to 3 mm Length up to 6 metres available Materials: LCG (Low Carbon Galvanised) / SS304 / S316L / SS316 / SS316L - or as required to meet Customer requirements. End fittings - to suit Customer requirements

An observation well means a non-pumping, non-potable well used for measuring groundwater levels or potentiometric surface. Observation wells can be used to show that a well is obtaining water from an isolated aquifer, or perhaps that the aquifer is connected to other aquifers or surface water. Piezometers are excellent for capturing water flow, strata permeability, and depth of water pressure.