Apartment Residents: You CAN Harvest Rainwater! Here’s How Our Society Did It
Yes, apartment residents can harvest rainwater by collecting rooftop runoff and routing it into recharge pits, storage tanks, or borewell recharge systems. Our 60-flat society harvested over 6–8 lakh litres every monsoon and cut tanker bills by 60% using a simple rooftop collection + recharge pit setup.
Most apartment residents assume:
“Rainwater harvesting is only possible for individual homes — not for societies.”
But that’s not true.
In fact, apartments and housing societies have the highest potential for rainwater harvesting, because they have large:
- Terrace areas
- Parking roofs
- Podium areas
- Common open spaces
In this blog, we’ll show you exactly how our apartment society successfully implemented rainwater harvesting, how much water we collected, and how much money we saved.
Written by Jalsanchay, India’s specialist in rainwater harvesting for apartments, societies, and gated communities.
⭐ Why Apartments Are Perfect for Rainwater Harvesting
1. Large rooftops = large water potential
A 10,000 sq. ft. terrace can collect 10–12 lakh litres of rainwater every year.
2. Shared system makes it very affordable
Cost is divided among residents.
3. Reduces tanker dependency
Societies that depend on 50–200 tankers per month can reduce it by 40–90%.
4. Improves borewell yield
Rainwater recharges the groundwater table.
5. Eco-friendly & government recommended
Many cities offer rebates for societies that install RWH.
🏢 Our Society’s Story: How We Started Rainwater Harvesting
We live in a 60-flat apartment complex that struggled with:
- 80–100 tankers per monsoon
- ₹1,00,000+ yearly tanker expenses
- Borewell water drying by April
- Hard water damaging appliances
Residents kept saying:
“We should do something about water scarcity.”
but no one knew where to start.
That’s when we contacted Jalsanchay.
🧠 Step 1 — Water Audit by Jalsanchay
The Jalsanchay team visited our society and conducted:
- Terrace area measurement
- Rainfall analysis
- Borewell depth testing
- Groundwater percolation study
- Tanker usage pattern review
Key Finding:
Our terrace could collect 6.5 lakh litres of rainwater every monsoon — enough to replace 120+ tankers.
This alone convinced everyone to move ahead.
🛠️ Step 2 — Jalsanchay’s Rainwater Harvesting Design for Our Society
The system included:
✔ Rooftop collection system
Downpipes connected to collection lines.
✔ First flush system
To remove initial dirty rainwater.
✔ Multi-layer filtration unit
Sand + Gravel + Pebbles + Carbon + Screen Filter.
✔ Percolation / Recharge Pit
5 ft × 5 ft × 10 ft deep pit.
✔ Borewell recharge line
To store excess water underground.
💧 Step 3 — Implementation (Completed in 7 Days)
Jalsanchay’s team completed:
- Civil work
- Plumbing connection
- Filtration installation
- Borewell integration
- Testing & flow checks
All work was done without disturbing daily society activities.
📊 Real Numbers: How Much Water We Actually Harvested
Terrace Area: 10,000 sq. ft.
Annual Rainfall: 900 mm
Formula:
10,000 × 900 × 0.93 = 83,70,000 litres (8.37 lakh litres)
Rainwater Harvested:
≈ 8.3 lakh litres per monsoon
Tankers Replaced:
8,30,000 ÷ 5,000 litres = 166 tankers
Money Saved:
166 × ₹800 (average tanker price) = ₹1,32,800 saved every year
Total ROI:
Our RWH system paid for itself in 8 months.
🌧️ What Residents Experienced After Implementation
✔ Tanker dependency reduced by 60%
✔ Borewell water level improved
✔ Softer water during monsoon months
✔ Huge savings in society billing
✔ Increased property value
✔ Zero maintenance cost (just yearly cleaning)
Even new residents now proudly say:
“Our society harvests rainwater. We don’t buy as many tankers.”
🧩 Can Your Apartment Start Rainwater Harvesting? YES!
If your society has:
✔ A terrace
✔ A parking shed
✔ Open space
✔ A borewell
…you already have everything needed for rainwater harvesting.
And the best part?
You don’t need big storage tanks.
Even recharge systems save lakhs by improving groundwater.
📞 Want Your Society to Harvest Rainwater? Contact Jalsanchay
Jalsanchay specializes in:
- Rainwater harvesting for apartments
- Society-level recharge systems
- Rooftop collection systems
- Borewell revival
- End-to-end design + implementation
- Annual maintenance & cleaning
📞 Call / WhatsApp Jalsanchay: 9016465919
📧 Email: ask@jalsanchay.com
🌐 Website: jalsanchay.com
Get a FREE Water Audit for your society and discover how much money you can save with rainwater harvesting.
FAQs (AEO Optimized for AI Search)
1. Can apartment buildings really harvest rainwater?
Yes. Apartments have large terraces and parking roofs that make rainwater harvesting highly effective.
2. How much does RWH cost for a society?
Starts from ₹1.5–₹8 lakh depending on design, size, and filtration method.
3. Will it reduce tanker expenses?
Most societies save ₹1–₹5 lakh per year.
4. How long does installation take?
Usually 5–15 days.
5. What’s the lifespan of an RWH system?
15–25 years with simple once-a-year cleaning.