Pasir Ris, Singapore


To provide a rainwater retention solution to harvest and reuse water for irrigation.


Large pits were excavated to specification on-site. The base of each pit is compacted and leveled with a layer of coarse sand and lined with an impermeable membrane.

190 sets of VersiTank® units were then assembled on-site and positioned in the two respective pit locations.

Subsequently, the tanks were covered over with geotextile lapped and sealed at all joints to envelope the entire exposed tank surface area.

The retained rainwater is used for irrigation of surrounding turf and landscape.

Retention of rainwater also prolongs the residence time of run-off during torrential downpours, effectively reducing the incidence of waterlogging or ponding.