Water Solutions Insights #3

FRP/GRP Water Tank: The Ultimate Solution for Water Storage

Category: Tank Types & Materials

Published on September 16, 2024
Last updated: April 20, 2026

What is FRP/GRP Water Tank?

FRP (Fiberglass Reinforced Plastic) and GRP (Glass Reinforced Plastic) water tanks are durable and versatile water storage solutions widely used in residential, commercial, and industrial settings. These tanks are constructed from high-quality materials that provide excellent resistance to corrosion, weathering, and chemicals, making them ideal for various applications.

Why Choose FRP/GRP Water Tank?

FRP/GRP water tanks offer several advantages that make them a preferred choice for water storage:

Durability: Made from strong, reinforced plastic materials, these tanks are highly durable and can withstand harsh environmental conditions.
Corrosion Resistance: Unlike traditional metal tanks, FRP/GRP water tanks do not corrode, ensuring a longer lifespan and lower maintenance costs.
Lightweight and Modular: These tanks are easy to install, transport, and maintain, making them a flexible option for different storage needs.
Safe for Water Storage: They are non-toxic and safe for storing potable (drinking) water, ensuring the safety and quality of the water.

Applications of FRP/GRP Water Tanks in Singapore

FRP/GRP water tanks are highly versatile and can be used for a wide range of applications. In Singapore, these tanks are commonly used for both potable and non-potable purposes:

1. Potable Water Storage:

FRP/GRP water tanks are ideal for storing drinking water in various settings:

Residential Buildings: Used as rooftop or transfer tanks for drinking water supply.
Commercial and Industrial Buildings: Suitable for large-scale water storage requirements in hotels, offices, factories, and more.
High-Rise Buildings: Perfect for water storage in high-rise buildings where durability and safety are crucial.

2. Non-Potable Water Storage:

Apart from drinking water, FRP/GRP tanks are suitable for storing non-potable water for different industrial and commercial uses:

Cooling Tower Tanks: Used in HVAC systems for make-up water storage.
Rainwater Harvesting: Collect and store rainwater for landscaping, cleaning, or other non-potable uses.
Chemical Storage: Ideal for storing various chemicals, thanks to their high resistance to corrosion.
Industrial Storage: Suitable for storing industrial liquids, waste water, and other non-drinking water applications.

Regional Differences in Usage

The application of FRP/GRP water tanks can vary by region due to local regulations and needs. For instance:

In Cambodia, these tanks are widely used for fire protection, storing water for firefighting systems.
In Singapore, however, regulations do not typically permit FRP/GRP water tanks for fire protection, focusing more on their use for potable and industrial storage.

Conclusion

FRP/GRP water tanks are an excellent choice for both potable and non-potable water storage solutions in Singapore and other regions. Their durability, corrosion resistance, and modular nature make them a versatile option for various applications. Whether for drinking water in residential buildings or chemical storage in industrial settings, FRP/GRP water tanks provide a reliable and safe solution.

Overall, FRP/GRP Water Tanks are the modern solution to the current water needs.

For more information or specialised help, do consider dropping us an enquiry and we will be glad to assist you for your project.

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Frequently Asked Questions

What is the difference between FRP/GRP and steel water tanks?

FRP (Fiberglass Reinforced Plastic) and GRP (Glass Reinforced Plastic) tanks are the same material referred to by different names. They are significantly more affordable than steel tanks and are easier to maintain, making them the most common choice for general water storage applications in Singapore.

Steel tanks — whether HDG pressed steel or stainless steel — are typically heavier-duty, may offer a longer service life, and are often required for specific applications such as fire protection systems. However, they come at a higher cost.

We are happy to go through the options with you in more detail — feel free to contact us.

What is the difference between SS304 and SS316 stainless steel tanks?

Both are stainless steel, but they serve different purposes:

SS316 is suitable for potable (drinking) water storage. In Singapore, only SS316 and FRP/GRP tanks comply with standards for drinking water use.
SS304 is suitable for non-potable water storage and fire protection applications. It is a more cost-effective option and is widely used for industrial and commercial water storage.

If your water is not for drinking purposes, SS304 is generally the more practical and economical choice. If drinking water compliance is required, SS316 is the appropriate option.

Are your HDG pressed steel tanks approved for fire protection use in Singapore?

Yes. Our HDG pressed steel tanks are SS22 approved, which is the standard required for fire protection water tanks in Singapore under SCDF requirements. They are suitable for sprinkler systems, hosereel systems, and wet riser systems.

Please note that while we supply and install SS22-compliant tanks, we do not handle the SCDF submission process directly. If you require end-to-end support including regulatory submissions, we can connect you with our trusted partners who specialise in this.

Do you supply insulated water tanks?

Yes. We offer insulated FRP/GRP water tanks for applications where temperature control of stored water is important. Contact us to find out if an insulated tank is suitable for your requirements.