Overview
This project involved repair and rectification works for an existing FRP sectional water tank at Southbank, Singapore.
The existing tank had deteriorated side panels and internal tie-rods which resulted in extensive leaking issues. Our team did a survey and proposed the required replacement to restore the structural integrity and watertightness of the system.
As the works involved confined space entry and work-at-height activities, careful planning and supervision were required to ensure safe execution while minimizing disruption to the building operations.
Scope of Work
- Supply and replacement of 2 nos. FRP side panels
- Replacement of internal tie-rods and necessary accessories
- Replacement of foam sealant, bolts, and nuts
- Internal cleaning, washing, and flushing of one tank compartment
- Water sample testing through SINGLAS-accredited laboratory
- Testing and reinstatement of tank system
Our Approach (Process)
1. Site Assessment & Inspection
Our technical team conducted a detailed site inspection to identify the leakage source, assess the condition of the tank structure, and determine the extent of panel and tie-rod deterioration.
As the tank remained operational within an occupied development, the repair methodology had to be carefully planned to ensure safety and minimize water disruption.
2. Safety Planning & Work Preparation
Before commencement of works, our team prepared the necessary work procedures, manpower deployment, and safe access arrangements for the repair activities.
Work-at-Height assessments and safety arrangements were carried out, including any necessary fall protection, supervision arrangements, and deployment of trained personnel in compliance with Singapore WSH requirements.
3. Replacement of FRP Panels & Internal Components
The damaged FRP side panels were dismantled and replaced together with new foam sealant, bolts, and nuts to restore proper sealing integrity.
At the same time, deteriorated internal tie-rods were replaced to strengthen the structural support of the sectional tank system.
Our experienced installation team ensured proper alignment, tightening sequence, and installation procedures to minimize stress on the existing tank structure.
4. Cleaning, Washing & Water Quality Testing
Upon completion of repair works, the affected compartment underwent internal cleaning, washing, and flushing works before reinstatement.
Water sampling was subsequently carried out through a SINGLAS-accredited laboratory to ensure the water quality was suitable before the tank was returned to service.
5. Testing & Reinstatement
The repaired tank compartment was tested and reinstated upon completion of the rectification works.
Final checks were carried out to verify the integrity of the repaired sections and ensure the system was functioning properly without leakage issues.
Project Outcome
- Successful replacement of damaged FRP panels and tie-rods
- Restoration of tank structural integrity and watertightness
- Safe execution of Work-at-Height activities with certified personnel
- Completion of cleaning and water quality testing requirements
- Successful reinstatement of tank system for operational use
Why This Matters
FRP sectional water tanks can experience deterioration over time due to aging components, stress on internal reinforcements, and long-term operational wear.
Repair works on existing sectional panel tanks require experienced technicians who understand:
- Structural behavior of sectional panel tank systems to understand which components are faulty
- Proper replacement methodology for panels and tie-rods
- Correct sealing and tightening procedures
- Water quality restoration requirements
- Work Safety for water tank repair works
With over 35 years of experience in FRP water tank repair and replacement in Singapore, our team is able to provide practical rectification solutions that help extend the lifespan of existing water tank systems while minimizing operational disruption.
