From plumbers: Is Bengaluru’s RWH law working?

The demand for installing RWH system has shot up from the last two years as people are now aware of the rainwater harvesting law and the grim water situation.

With the city’s growing water woes, rainwater harvesting has come into focus time and again. It was also made compulsory in Bangalore by law.

The BWSSB (Amendment) Act passed in August 2009, states that every owner or occupier of a building having a sital area of 2,400 sqft and above, or every owner who proposes to construct a building on a sital area of 1,200 sqft and above, should install rainwater harvesting structures.

Following the law and various awareness exercises conducted in the city, it appears that RWH installation pace has picked up much more compared to earlier years. The people who are where the rubber really hits the road are the plumbers.

This is a short four-minute citizen-shot video of one conversation with an experienced Bengaluru plumber, Pradeep Kumar. Listen to his on-the-ground perspective on RWH, the law and Bangalore.

Kumar is from Orissa who has been working in Bangalore for seven years now. He says that the rainwater harvesting projects have increased greatly from the last two years, which proves that the law has kicked in and people are aware of it. “I get around 100 small RWH projects and two to three big RWH projects every month. I also get maintenance calls – typically to clean the filter”, he says.

Pradeep makes one more interesting point. He feels the unreliability of BWSSB or Cauvery water even in areas with water connections is driving up the interest in RWH installations. Kumar feels everyone should practice RWH to cut down on the dependency on piped water.

When asked about where people usually store rainwater, he says, ”They either store it in a tank and use it directly or recharge it using a recharge well of about 20 feet deep”.

Installing a Rainwater harvesting system ranges anywhere between Rs 10,000 to Rs 50,000 depending on the size of the pipe and area he says.

Kumar’s team comprises 30 people and he adds, “There are easily thousand other plumbers who do this like us”, in Bengaluru.

Leave a Reply

Your email address will not be published. Required fields are marked *

Similar Story

The wild in the city: What citizen scientists tell us about Bengaluru’s biodiversity

Spatial and temporal biodiversity patterns, as observed by citizen scientists in the city during 2016-2025, were studied at a datajam in December 2025.

Imagine you’re out on a morning walk, phone in hand, when you spot a butterfly you’ve never seen before. You snap a photo, log it into a citizen science app, and voila! You’ve just contributed to crucial biodiversity monitoring. This isn’t just a hobby; it’s part of a global movement where ordinary people collect, record, and sometimes analyse data about plants, animals, and ecosystems. Citizen science stretches the reach of ecological research. Every observation adds to unique longitudinal datasets that reveal phenology — periodic events in the life cycle of a species — along with species distribution shifts and population…

Similar Story

Air quality management is a governance problem, not just an environmental one

Despite massive funding, Indian cities face weak governance, poor data, and limited capacity, as air pollution continues to worsen.

Indian cities are struggling to breathe. Air pollution is a year-round governance challenge. In 2024, 35 of the 50 most polluted cities globally were in India, with PM2.5 concentrations above 66.4 μg/m3. This is at least 13 times the World Health Organization (WHO) guidelines and at least 1.6 times the National Ambient Air Quality Standards (NAAQS) in India. Citizens continue to bear the brunt of worsening air quality, and urban local governments (ULGs) are at the forefront of the problem, being primarily accountable for their citizens' first mile. While they do have a role to play in addressing this threat,…