Rainwater Harvesting Maintenance for Apartments in Bangalore
Most apartments in Bangalore have a rainwater harvesting system because BWSSB requires it. Many of those systems stopped collecting water years ago because the filters clogged and the recharge pits silted up. Reshma Facilities Management keeps the system working, so the association gets the water and stays compliant.
Is rainwater harvesting mandatory in Bangalore?
Yes. Under BWSSB rules, rainwater harvesting is mandatory for larger plots and new constructions, and properties without a working system are charged a penalty on their water bill.
A system that exists on paper but does not collect water does not help the association in a dry summer.
What we maintain
Component | Work done | Frequency |
|---|---|---|
Roof and terrace catchment | Cleaning, outlet and gutter clearing | Monthly, and before monsoon |
Downpipes | Leak and blockage check | Quarterly |
Filters | Cleaning and media replacement | Before and during monsoon |
Recharge pits and wells | Desilting, filter media check | Annually, before monsoon |
Storage sumps | Cleaning and first-flush management | As per scope |
Overflow lines | Clearing | Before monsoon |
Pipelines | Leak and joint check | Quarterly |
Signs your RWH system is not working
- Water pools on the terrace after rain
- Recharge pits overflow within minutes of rain starting
- Filters are full of leaves and silt
- Borewell levels keep dropping even in a good monsoon
Why maintenance is timed around the monsoon
Most of Bangalore’s rain falls between June and October, with heavy spells in May and November. A system cleaned in April is ready for the first rains. A system cleaned in August has already missed half the season.
Setting up or upgrading RWH
We can assess whether your current system is sized for the roof area and suggest upgrades such as additional recharge wells.
Frequently asked questions
At least once a year before the monsoon, more often if the pit receives surface runoff.
Only after proper treatment. Most apartments use it to recharge groundwater or for non-drinking use.
Recharge wells return rainwater to the ground near the building, which can support borewell yield over time.