
What is a GRP Tank?
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Tricel GRP Tank - Durable, Versatile Cold Water Storage Solutions
A Tricel GRP tank is trusted across Ireland for their strength, reliability, and long-term performance.
Whether you’re storing water for domestic use, commercial buildings, or industrial processes, our GRP (Glass Reinforced Plastic) tanks offer a robust and low-maintenance solution tailored to your needs.
What is a GRP Tank?
A GRP tank is a water storage container made from glass-reinforced plastic, a composite material known for its high strength-to-weight ratio and resistance to corrosion. Unlike traditional steel or concrete tanks, GRP tanks are lightweight, easy to install, and require minimal upkeep. They are ideal for storing cold water in a wide range of environments, from residential lofts to large-scale industrial facilities.
GRP tanks are manufactured using layers of fibreglass and resin, creating a tough, durable shell that resists weathering, chemical exposure, and mechanical stress. This makes them particularly suitable for Ireland’s variable climate and demanding building standards.
Why Choose A Tricel GRP Tank?

Tricel has over 50 years of experience in manufacturing GRP products, and our tanks are designed to meet the highest standards of quality and performance. Here’s why our GRP tanks stand out:
- Corrosion-Resistant – GRP does not rust or degrade like metal, making it ideal for long-term water storage.
- Lightweight & Strong – Easier to transport and install, yet tough enough to withstand heavy use.
- Customisable – Available in a wide range of sizes and configurations to suit any application.
- Low Maintenance – No need for regular painting or protective coatings.
- Certified Quality – Manufactured to WRAS standards and ISO 9001 certified for quality assurance.
- Thermal Insulation Options – Optional insulation to prevent freezing or overheating in exposed locations.
Our GRP Tank Range
We offer three main types of GRP tanks to suit different needs:
One Piece GRP Water Tanks
These tanks are moulded in a single piece, offering a seamless and leak-resistant design.
Capacity: 45L – 6,000L
Applications: Domestic water storage, small commercial buildings, irrigation.
Benefits: Quick installation, compact footprint, minimal maintenance.
Sectional GRP Tanks
Made from modular panels, sectional tanks can be assembled on-site to create large-capacity storage systems.
Capacity: 1,000L – 4.6 million litres
Applications: Hospitals, schools, factories, apartment blocks, and farms.
Benefits: Easy transport, scalable design, ideal for restricted access areas.
Fire Protection GRP Tanks
Specially designed for fire suppression systems, including sprinklers and misting setups.
Capacity: 5m³ – 1,300m³
Applications: Commercial buildings, warehouses, industrial sites.
Benefits: Compliant with fire safety regulations, robust and reliable.
Download the Tricel Catalogue and Explore Our Product range today!

Applications of a GRP Tank
Tricel GRP tanks are used across a wide variety of sectors, thanks to their adaptability and performance. Here are some of the most common applications:
Commercial & Public Buildings
- Office blocks, hotels, and shopping centres rely on a GRP tank for consistent water supply.
- Hotels, universities, and hospitals use sectional tanks for large-scale water storage.
- Apartment complexes benefit from compact one-piece tanks for individual units or shared systems.
Industrial & Manufacturing
- GRP tanks are used for process water, cooling systems, and boiler feed applications.
- Optional chemical-resistant linings allow for safe storage of non-potable liquids.
- Their modular design makes them ideal for retrofitting into existing facilities.
Agriculture & Rural Use
- Farmers use GRP tanks for rainwater harvesting, livestock watering, and crop irrigation.
- Their resistance to UV and weathering makes them suitable for outdoor installations.
- Lightweight construction allows for easy relocation and seasonal use.
Fire Safety & Emergency Systems
- GRP tanks are a key component in fire suppression systems, storing water for sprinklers and misting units.
- Their reliability and compliance with safety standards make them a preferred choice for building contractors and fire engineers.
Domestic Installations
- Homeowners use GRP tanks for loft storage, garden watering, and emergency backup.
- Compact sizes and easy installation make them ideal for retrofitting into existing homes.
- Insulated options help prevent freezing during winter months.
Legionella Risk and GRP Tanks
Legionella bacteria can pose a serious health risk when water systems are not properly maintained. These bacteria thrive in stagnant or warm water and can cause Legionnaires’ disease, a potentially fatal form of pneumonia. GRP tanks, when correctly installed and maintained, help reduce the risk of Legionella by supporting good water hygiene practices.
Tricel GRP tanks are designed with smooth internal surfaces to prevent biofilm buildup and are compatible with insulation and access hatches for easy inspection and cleaning. We also offer WRAS-approved options and guidance on best practices for temperature control, turnover rates, and regular maintenance—key factors in Legionella prevention. For high-risk environments such as hospitals, care homes, and hotels, our tanks can be integrated into Legionella control regimes to ensure compliance with HSE and Irish Water guidelines.
FEATURED WHITE PAPER
Control of Legionella | Best Practices, Regulations, and Health Guidelines
Discover the latest best practices, legal obligations, and technological innovations in Legionella control. This white paper is your essential guide to maintaining safe, compliant water systems—perfect for engineers, contractors, and facilities managers. Download now to stay ahead of regulations and protect public health.

Built for Ireland. Delivered Nationwide.
A Tricel GRP tank is manufactured in Ireland and designed to meet the specific needs of Irish homes, businesses, and industries. Our nationwide delivery network ensures fast, reliable service wherever you are, backed by expert support and installation guidance.
We understand the challenges of water storage in Ireland’s climate and regulatory environment. That’s why our tanks are built to last, with features that make them easy to install, maintain, and operate. Discover the best approch to choosing the right water tank for your needs >>
Installation & Support
Tricel offers full support from selection to installation:
- Design Assistance – Our team helps you choose the right tank size and configuration.
- Installation Guidance – Clear instructions and optional on-site support.
- After-Sales Service – Ongoing maintenance advice and technical support.
Whether you’re a contractor, facilities manager, or homeowner, we’re here to help you get the most from your GRP tank investment.
Need Help Choosing the Right GRP Tank?
Use our Water Tank Calculator to find the perfect fit for your project—or speak to our experts for a custom recommendation.
Call us: 064 669 8273
Email: watersales@tricel.ie
Based in Killarney. Serving all of Ireland.
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