High-capacity rain percolator & groundwater recharge unit
Skyra Rainsink transforms intense monsoonal surface runoff into lasting groundwater reserves. Built from heavy-duty pre-cast RCC rings and multi-stage natural silica filter media, it intercepts high-volume stormwater, purifies suspended sediments, and actively recharges subterranean aquifers.
How SkyRa Rainsink transforms your campus
Dual-action hydrological engineering designed for enterprise infrastructure — providing immediate stormwater flood resilience alongside long-term groundwater ESG stewardship.
Ideal for logistics hubs, factories, raw material yards & industrial facilities
“Skyra safeguards your campus from intense monsoonal cloudbursts. By routing high-velocity surface runoff into structured percolation units, our system prevents yard inundation, protects ground inventory, and eliminates operational downtime.”
Ideal for MNCs, IT parks, educational institutions & green building projects
“Turn monsoonal precipitation into a long-term enterprise water asset. Our multi-stage silica & carbon filtration units actively recharge deep soil strata, enabling facilities to meet CGWA recharge mandates and achieve verified water neutrality.”
Explore Rainsink filter chambers
Click on any section of the cross-section diagram on the left to inspect its filter media specifications and hydrological purpose.
1Top inlet & manhole cover
expand_more2Primary filter (medium silex)
expand_more3Adsorption bed (activated carbon)
expand_more4Polishing layer (small silex)
expand_more5Coarse sand base & soil seep zone
expand_morePercolation Pond · Capture • Filter • Recharge
Turning monsoonal stormwater runoff into an engineered, sustainable source for groundwater. For large campuses and wide catchments, Skyra pairs modular Rainsink shafts with Dry Rubble Masonry (DRM) percolation ponds to handle massive flood surges and actively restore regional aquifers.
Prevents Flooding
Captures and controls excess runoff
Buffers sudden cloudburst surges from campus yards, logistics aprons, and rooftops. Dissipates flow energy and prevents localized inundation.
Recharges Groundwater
Lets water percolate back into the aquifer
Creates continuous gravity-driven infiltration through porous dry rubble stone and multi-layered soil strata, reviving deep borewells and unconfined water tables.
Supports Sustainability
Conserves water and restores local ecosystems
100% natural, chemical-free, gravity-driven design that restores pre-development hydrological balance, supporting corporate ESG, CGWA NOC, and IGBC/LEED credits.
DR Masonry Walls
Durable & porous stone matrix
Dry Rubble Masonry walls built from interlocking natural stone boulders without impervious mortar bonding. Provides structural retaining strength while allowing water to seep laterally into surrounding soil horizons.
Need a custom percolation pond blueprint for your acreage?
Ideal for high-runoff enterprises & vast acreage
Tailored civil blueprints engineered for terrain gradient, soil conductivity, and local rainfall intensity.
Zero yard waterlogging & compliance with CGWA NOC withdrawal mandates.
“By capturing massive volumes of runoff, percolation ponds prevent localized flooding while turning problematic stormwater into a valuable resource for replenishing local aquifers.”
— Skyra Hydrological Engineering StandardHow modular Rainsink units and DRM percolation ponds complement each other
Leading industrial and commercial facilities rarely rely on a single mechanism. Skyra deploys a multi-echelon hydrological network pairing localized subterranean Rainsinks with central DRM percolation ponds.
Localized Pre-Cast RCC Shafts
Installed directly beneath paved yards, driveways, internal roads, and building corners. Featuring flush cast-iron manholes, high-rate silex filtration, and granular activated carbon beds. Zero surface footprint.
- Heavy vehicle traffic rated top slab
- Multi-stage silica & carbon filtration
- 7 to 15 units per acre density
Dry Rubble Masonry (DRM) Open Pond
Excavated at natural low-elevation campus peripheries or open greens. Retains massive monsoonal flood volumes, allowing continuous lateral and downward percolation across hundreds of square meters of soil surface.
- Massive cloudburst volume surge buffer
- Porous DRM stone walls & perimeter safety fence
- Restores deep unconfined aquifer reservoirs
Where & how to deploy SkyRa Rainsink
water_dropNear existing open wells & borewells
Position Rainsink units 2 to 5 meters from existing wells. Rainwater filters naturally through surrounding soil strata before entering the well, restoring yield and water quality.
landscape1-Acre industrial or institutional campus
Install 7 to 15 Rainsink units distributed across a 1-acre plot on terrain with slopes under 30°. This network captures high-intensity runoff, prevents localized yard flooding, and lifts water tables across the entire site.
Pre-installation safety rules
- Slope restriction: Do not install on steep slopes of 30° or higher due to landslide and soil erosion hazards.
- Safe distances: Maintain mandatory clearance from septic tanks, chemical storage zones, and building foundations.
- Hydro-geological check: Verify soil percolation capacity and unconfined aquifer depth prior to excavation.
- Statutory compliance: Align unit layout with CGWA regulations, municipal bylaws, and green building norms (LEED, IGBC, GRIHA).
Ready to equip your campus with SkyRa Rainsink?
Our civil hydrologists analyze site topography, model peak monsoonal runoff, and deliver a turn-key Rainsink layout plan tailored to your ESG goals and flood prevention targets.