Water and fuel storage have become essential for both domestic and industrial purposes. With unpredictable weather, increased demand, and the constant need for reliable supply systems, investing in high-quality storage tanks is no longer optional—it’s necessary. Whether you're looking for a cold water storage tank for residential use, a large GRP water tank for commercial buildings, or a galvanized steel water tank for industrial needs, understanding your options is crucial.

This article explores the most popular types of water and fuel storage tanks—plastic, GRP (glass reinforced plastic), galvanized steel, and fiberglass—explaining their benefits, common use cases, and what makes each suitable for specific storage needs. We also guide you through the leading options for water storage tanks for UK customers and why choosing the right supplier matters.

The Importance of Proper Water & Fuel Storage

Water and fuel are vital resources in both residential and industrial settings. Ensuring their safe, hygienic, and efficient storage can:

• Prevent contamination

• Reduce waste

• Ensure supply during shortages

• Comply with regulatory standards

From collecting rainwater to storing emergency water supplies or housing fuel for generators, storage tanks provide a reliable solution tailored to individual and industry-specific needs.

Overview of Common Tank Types

When choosing a water or fuel storage tank, the material it is made from plays a major role in its functionality, durability, and suitability for various environments. Below are the main categories:

1. Plastic Water Tanks

2. GRP Water Tanks

3. Galvanised Steel Water Tanks

4. Fibreglass Water Tanks

1. Water Storage Tanks Plastic – Affordable & Versatile

Plastic water tanks, usually made from polyethylene, are among the most widely used storage solutions across the UK. Their affordability, corrosion resistance, and lightweight design make them ideal for domestic and commercial use alike.

Key Benefits:

• Cost-effective solution

• Lightweight for easy transport and installation

• Non-corrosive and UV-resistant

• Wide range of shapes and sizes

Plastic tanks are ideal for garden irrigation, rainwater harvesting, and emergency drinking water storage. For many users, they serve as the perfect cold water storage tank thanks to their insulation capabilities and hygienic lining.

2. GRP Water Tanks—Strength Meets Lightweight Efficiency

Glass Reinforced Plastic (GRP) is a composite material combining the strength of fiberglass with the resilience of plastic resin. These tanks offer a long-lasting, maintenance-free solution and are ideal for both indoor and outdoor installation.

Why Choose a GRP Water Tank:

• Excellent thermal insulation

• Corrosion and rust-resistant

• Long service life (often over 25 years)

• Suitable for both potable and non-potable water

• Available in modular and one-piece options

These tanks are particularly popular in commercial properties, hospitals, and schools for storing large quantities of water. If you’re in need of a cold water storage tank that offers hygiene and longevity, GRP is an excellent choice.

3. Galvanised Steel Water Tanks – Rugged & Industrial-Grade

For those needing robust water or fuel storage solutions, galvanized steel water tanks are a top-tier choice. These tanks are made from steel sheets coated with zinc to prevent rust, making them ideal for heavy-duty applications and outdoor environments.

Benefits of Galvanized Steel Tanks:

• Superior structural strength

• Long-lasting under extreme conditions

• Ideal for large capacity storage (10,000+ litres)

• Fire-resistant and highly secure

Common in agriculture, firefighting systems, and industrial facilities, these tanks can withstand high pressure and tough weather. For rural areas where water supply is intermittent, galvanised tanks offer unmatched dependability.

While they are heavier and require professional installation, their low maintenance and durability often make them the preferred solution for long-term usage.

4. Fibreglass Water Tank – High Durability & Chemical Resistance

Fiberglass water tanks are known for their incredible resistance to harsh chemicals, UV radiation, and extreme temperatures. Unlike standard plastic, fiberglass has a higher strength-to-weight ratio and performs excellently in industrial and marine settings.

Ideal Use Cases:

• Chemical storage

• Marine applications

• Fuel and oil storage

• Potable and greywater storage

Fiberglass tanks are molded into various shapes and can be custom-built to fit unique space constraints. They are also a great alternative when underground installation is needed since they can be manufactured with reinforcements to handle earth pressure.

Although they come at a higher price point compared to plastic tanks, the return on investment is realized through long service life and lower maintenance costs.

Choosing the Right Water Storage Tank

When selecting a tank, consider the following:

1. Application

• Domestic water supply: Plastic or GRP

• Industrial processes: Galvanised or Fibreglass

• Chemical/fuel storage: Fibreglass

2. Capacity Requirements

• Small homes: 100–1000 litres

• Commercial: 2,000–10,000 liters

• Agricultural/Industrial: 20,000+ litres

3. Installation Environment

• Above-ground: Plastic, GRP, or Galvanised

• Below-ground: Fibreglass or specially designed Plastic tanks

4. Maintenance Expectations

• GRP and Fibreglass require minimal maintenance

• Galvanised tanks need occasional inspection for corrosion

• Plastic tanks benefit from regular cleaning and UV protection

Water Storage Tanks UK—A Market Full of Options

The UK has strict regulations surrounding water storage, especially when it comes to potable water. Approved tanks must be WRAS compliant and meet the standards of the Water Supply (Water Fittings) Regulations 1999.

When shopping for water storage tanks UK, consider the following:

• Choose a reputable supplier that offers certified tanks

• Look for tanks with manufacturer warranties

• Prefer suppliers with installation and after-sales support

A highly recommended supplier is The Tank Shop, offering a comprehensive range of plastic, GRP, and other high-quality water storage solutions to meet various residential, commercial, and industrial needs.

Fuel Storage Considerations

Though this article mainly focuses on water storage, it’s important to briefly highlight fuel storage tanks, as they often share materials and construction styles with water tanks—especially in the case of steel and fiberglass models.

For storing diesel, petrol, or heating oil, always ensure:

• The tank complies with local environmental guidelines

• It is bunded (double-walled) to prevent leaks

• It’s positioned safely away from watercourses or buildings

GRP and fiberglass tanks excel in fuel storage due to their resistance to corrosion and structural stability under heavy loads.

Maintenance & Safety Tips

Proper tank maintenance ensures longevity and safe usage:

• Inspect regularly for cracks, rust, or leaks

• Clean annually to prevent algae and bacterial growth

• Install filters and lids to block debris and insects

• Check insulation especially for cold-weather tanks
  
  

For fuel tanks, inspect valves and fittings regularly and monitor for any signs of leaks or pressure issues.

Final Thoughts

Whether you’re storing clean water for domestic use or fuel for industrial machinery, the right tank makes a huge difference in safety, performance, and durability. Plastic water tanks are excellent for general use, GRP water tanks offer the best blend of weight and strength, galvanized steel water tanks are perfect for rugged environments, and fiberglass water tanks lead the way in chemical and fuel resistance.

By understanding your requirements and matching them to the correct tank type, you ensure that your investment serves you well for years to come.

If you're in the market for cold water storage tanks or just browsing different water storage tanks in the UK, be sure to explore reputable suppliers like The Tank Shop for high-quality solutions and dependable customer service.