Water scarcity has become a pressing challenge in urban India, and Bangalore is no exception. With depleting groundwater levels and increasing population pressure, the city needs sustainable water solutions more than ever. Rainwater harvesting stands out as one of the most effective methods to conserve and reuse water. At Varuna, we specialize in designing and implementing comprehensive, eco-friendly, and cost-effective rainwater harvesting systems tailored for residential, commercial, and industrial use.

Why Rainwater Harvesting is Crucial in Bangalore

Bangalore receives a significant amount of rainfall annually, but much of it goes to waste due to inadequate infrastructure and poor planning. This loss directly contributes to water shortages, increased dependency on tanker water, and rapidly depleting aquifers.

Rainwater harvesting enables homes, layouts, and institutions to:

• Reduce dependency on municipal water supply

• Recharge groundwater levels

• Lower water bills

• Prevent waterlogging and urban flooding

• Meet sustainability and green building standards
  
  

Varuna's Rainwater Harvesting Services

As a leading rainwater harvesting consultant in Bangalore, Varuna offers end-to-end solutions:

Rooftop Rainwater Harvesting Systems

We design systems that channel rainwater from rooftops into filtration units and storage tanks, reducing wastage and ensuring efficient use.

Groundwater Recharge

Our advanced recharge solutions help replenish borewells and underground aquifers naturally.

Precast RCC Rainwater Harvesting Tanks

Manufactured with M40-grade concrete and Fe500 steel, our precast RCC tanks ensure long life, leak-proof performance, and quick installation.

Filtration and Disinfection Units

We provide multi-layer filtration systems that remove dust, leaves, pathogens, and pollutants, delivering clean water fit for domestic, gardening, or flushing purposes.

Turnkey Project Execution

From site analysis and design to construction and maintenance, Varuna handles every aspect of your water conservation project.

Features of Our Precast RCC Rainwater Harvesting Tanks

Varuna's precast tanks are engineered for durability, hygiene, and convenience. Key features include:

• Quick installation within 1–2 days

• Monolithic structure with no joints = zero leakage

• Available in capacities from 5KL to 100KL

• Double-layer reinforcement

• Optional epoxy coating for additional protection

• Suitable for underground, semi-underground, and overhead use
  
  

Water Quality Advantages

Rainwater, when harvested and stored properly, is one of the cleanest sources of water. Key benefits include:

• Naturally soft water, free of chlorine and fluorides

• Contains essential minerals like calcium and magnesium

• Suitable for non-potable use: gardening, flushing, car washing, etc.

• With advanced filtration, it can be made potable
  
  

Factors That Influence the Cost of Rainwater Harvesting Systems

1. Tank Size: Larger tanks cost more but store more water. Ideal capacity depends on roof area and average rainfall.

2. Material: RCC tanks are durable and long-lasting compared to plastic or metal tanks.

3. Filtration Units: Higher the quality, better the performance.

4. Installation Site: Complexity depends on terrain, accessibility, and whether the tank is underground or above ground.

5. Automation & Pumps: Additional features like automated filters and submersible pumps add to efficiency and cost.
   
   

Applications of Rainwater Harvesting

Residential Use

• Homes, villas, apartments

• Garden watering, toilet flushing, and laundry
  
  

Commercial Properties

• Offices, malls, hotels, hospitals

• Reduces water dependency and fulfills green certification requirements
  
  

Industrial Facilities

• Factories and manufacturing units

• Supports cleaning, cooling, and process needs
  
  

Institutional and Educational Campuses

• Schools, colleges, hostels

• Reduces long-term operational costs
  
  

Agricultural & Parks

• Farms, nurseries, landscaping projects

• Ideal for drip and sprinkler irrigation
  
  

Environmental Benefits

• Reduces strain on public water supply

• Prevents soil erosion and runoff

• Averts urban flooding

• Improves soil moisture and groundwater tables

• Encourages a culture of sustainability
  
  

Installation Process

1. Site Inspection & Feasibility Study

2. Customized System Design

3. Excavation (if underground)

4. Tank Placement (Crane-assisted, if needed)

5. Piping & Filtration Setup

6. Water Quality Testing & Commissioning

7. Periodic Maintenance (AMC optional)
   
   

Compliance & Certifications

Rainwater harvesting is now mandatory for buildings in Bangalore over a certain built-up area. Our systems comply with:

• BWSSB Rainwater Harvesting Norms

• National Building Code (NBC)

• Green Building Certification Criteria (IGBC, GRIHA)

• Environmental Protection Act (1986)
  
  

Why Choose Varuna?

• Years of expertise in sustainable water management

• High-quality precast RCC tanks

• End-to-end consultancy to execution

• Customized designs as per site conditions

• Serving Bangalore, Karnataka & South India

• Scalable, modular systems for all budgets

Real-World Impact: What Our Clients Say

“We needed a sustainable water solution for our residential layout in Kanakapura Road. Varuna’s precast RCC tank and rooftop rainwater system helped us save costs, comply with regulations, and recharge our borewells. Installation was completed in just 48 hours!”

“As a school administrator, I was worried about rising water bills. Thanks to Varuna’s rainwater harvesting system, we now water our entire garden using stored rainwater.”

Book a Free Site Visit Today

Whether you are planning a new construction or want to retrofit your property, Varuna provides efficient and affordable rainwater harvesting solutions in Bangalore.

Call: +91 97313 3309