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Industry Insights
Water Solutions Insights #10

Guide on Water Storage Tank Cleaning and Certification in Singapore

  • Last updated: April 20, 2026
Hot-Dipped Galvanized (HDG) pressed steel water tank cleaning at Heritage Apartment, Singapore 2

In Singapore, maintaining the cleanliness and safety of water storage systems is crucial due to the stringent guidelines set by the Public Utilities Board (PUB). These regulations help ensure high water quality, especially for potable water tanks. Drawing on our extensive industry experience, this guide will provide insights into effective water tank cleaning and maintenance practices to help you remain compliant and keep your system in optimal condition.

 

1. Annual Maintenance Requirements for Potable Water Tanks

Property owners with potable water storage tanks are required by law to have these tanks cleaned, inspected, and certified at least once every 12 months by a Licensed Plumber (LP). This includes:

  • Inspection: Assessing the tank for any signs of wear, corrosion, or contamination.
  • Cleaning and Disinfection: Removing contaminants and disinfecting to prevent waterborne diseases.
  • Certification: Providing documentation to confirm the tank meets safety and hygiene standards.

 

2. Non-Potable Water Tanks: Rainwater, Sprinkler, and Hose Reel Systems

Non-potable tanks, such as those used for rainwater harvesting, sprinkler systems, and hose reels, do not fall under the same annual cleaning and certification requirements. However, regular maintenance is essential to ensure these systems are free from blockages and remain operational. Regular inspection can help identify any issues early, preventing potential system failures.

 

3. Skilled Cleaners and Maintenance Expertise

The role of experienced cleaners cannot be underestimated. Ensuring that the team cleaning your tank is skilled in techniques such as balancing water pressure across compartments is vital for long-term durability. Proper handling during cleaning helps prevent stress on tank walls and extends the life of your water storage tank.

Water Storage Tank Dirt before cleaning in Singapore Magtech
Water storage tank dirt before cleaning
Water Storage Tank Dirt after cleaning in Singapore Magtech
Water storage tank after a round of cleaning

4. Our Services and Trusted Partners

While we specialize in the supply, installation, displacement, and repair of water tanks, we do not provide direct cleaning services. However, we are happy to connect you with our trusted partners who specialize in water tank cleaning and certification, ensuring your tanks meet local standards and are maintained to the highest quality.

 

Long-Term Benefits of Proper Tank Maintenance

By adhering to regular cleaning and maintenance practices, and choosing high-quality tanks that meet industry standards, you can significantly extend the lifespan of your water storage tanks. This proactive approach ensures safe water storage and minimizes the need for costly repairs or replacements, giving you peace of mind for years to come.

For any questions or to connect with our recommended cleaning partners, feel free to contact us. With over 35 years in the industry and our dedicated team, we’re here to help you maintain and protect your water storage investments across Singapore, Cambodia, and the Philippines.

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Frequently Asked Questions

We provide free consultations and site assessments for all modular water tank repair enquiries. In most cases, we will first ask for photos or videos of the tank to assess the condition and determine whether a site visit is required.

Our team will then advise on the most suitable course of action. Where repair is feasible, we will always recommend it as the more cost-effective option compared to full replacement.

Common signs that your tank may need repair or assessment include visible leakage, water stains or rust on the exterior panels, unusual odour or discolouration in the water, or a tank that is approaching or exceeding its expected service life (typically 15–20 years for FRP/GRP tanks).

If you notice any of these, contact us for a free assessment. Do not attempt to diagnose or repair the tank yourself, as improper repairs can worsen the damage.

Yes. We provide 24/7 support for urgent situations such as major leaks or structural concerns.

In cases of severe damage or significant leakage, we will first advise you to shut off the water supply immediately to prevent further damage. If required, we can arrange a temporary water tank system as soon as the next day to ensure continuity of water supply.

Please note that emergency works may be subject to additional charges. For urgent assistance, contact our 24/7 representative at +65 8700 1377.

This depends on the type and extent of repairs required. For works that can be carried out externally, there is typically no disruption to the water supply. However, internal repairs or panel replacements may require one compartment — or in some cases the entire tank — to be taken offline.

Our team will plan and execute works efficiently to minimise disruption. Where necessary, we can also provide temporary water tank solutions to maintain supply throughout the repair period.

Yes. All repair works come with warranty coverage for workmanship, subject to the scope and conditions of the project. The warranty applies to the repaired or replaced components and does not extend to the entire tank.

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