Background

Modernising a Coastal PWCS for Reliability and Resident Comfort

Oceanfront at Sentosa Cove is a 264-unit luxury waterfront condominium in Singapore’s premier marina enclave.

In 2025, its pneumatic waste conveyance system was upgraded to address aging infrastructure and design constraints. This custom-engineered solution enhanced system reliability and the residents’ living experience.

  • The original system required a full rebuild to restore operational efficiency and reduce downtime.

  • Coastal conditions demanded corrosion-resistant materials and design adaptations to ensure long-term durability.

Implementation Approach

The project involved a complete rebuild of the refuse pipe network, including a suspended dual-pipe layout in the basement carpark to overcome headroom limits.

Corrosion-resistant stainless steel 304 materials were used due to the marine environment.

The old underground refuse pipe was repurposed as a groundwater drainage channel, supported by two dewatering chambers. All waste hoppers were replaced with modern, soft-closing types, while unused recyclables chutes were sealed for better hygiene

Works were carried out in phases during off-peak hours to minimize disruption to residents. A temporary waste collection system was set up to ensure uninterrupted disposal services while sections of the old system were replaced. Installation of the new dual-pipe layout in the low-headroom carpark was carefully engineered to avoid clashes with existing services and maintain safety clearances.

Strict site management and dust control measures kept the environment clean and safe, upholding the development’s high standards throughout the upgrade.

“Delivering a bespoke dual-pipe waste system in a live luxury condo, with marine-grade materials and zero disruption, showcased our team’s ability to meet premium expectations.”

In summary

Highlights

Dual-pipe System Design.

  • A suspended dual-pipe layout was engineered to overcome basement carpark headroom constraints

  • Custom support brackets and routing were devised to maximize headroom

Marine-Grade Materials and Durability.

  • All new pipes and fittings are constructed from grade 304 stainless steel to enhance durability.

  • Corrosion-resistant material protects the new system from rust and deterioration caused by salty sea air and humidity

Hopper and Chute Upgrades.

  • The old underground refuse line was converted into a groundwater seepage system, integrated with dewatering pumps to manage water ingress
  • All general waste hoppers were replaced with soft/self-closing types
In summary

Highlights

Dual-pipe System Design.

  • A suspended dual-pipe layout was engineered to overcome basement carpark headroom constraints

  • Custom support brackets and routing were devised to maximize headroom

Marine-Grade Materials and Durability.

  • All new pipes and fittings are constructed from grade 304 stainless steel to enhance durability.

  • Corrosion-resistant material protects the new system from rust and deterioration caused by salty sea air and humidity.

Drainage Network Repurposing

  • The old underground refuse line was converted into a groundwater seepage system, integrated with dewatering pumps to manage water ingress

Expertise in complex PWCS Projects

With the PWCS upgrade completed in August 2025, The Oceanfront at Sentosa Cove now benefits from a state-of-the-art waste management system that operates reliably, quietly, and hygienically, ultimately resolving previous infrastructure challenges while minimizing maintenance needs.

This successful upgrade delivers long-term value by enhancing daily living conditions, extending the system’s lifespan, and reinforcing the Oceanfront at Sentosa Cove’s reputation as a premium, well-managed residence.