Why is GRP Better for Water Storage?

GRP Enclosures

The importance of storing water for future use cannot be emphasised enough. Water is one of the few commodities that are essential for our daily lives. It is a critical component for our survival – and the human body cannot go for long without water. These facts emphasise the criticality of storing water for future use.

There are several reasons why you should take water storage critically. For instance, natural disasters, such as floods, earthquakes and hurricanes, can cause pollution and contamination, making it impossible to access freshwater. With your stored water, you would be comfortable until the relevant bodies have restored freshwater supply

Glass Reinforced Plastic (GRP) Water Tanks

When we talk about water storage, the first thing that comes to mind is tanks. There are many different types of tanks in the market today, usually classified according to construction material, design and linings. However, the manufacturing material is the most widely used classifier when categorising them.

Today, one of the most common types of tanks is the Glass Reinforced Plastic, or GRP, water tank. The material used to manufacture these tanks consists of very fine glass fibres woven together to form a flexible material. It is layered with resin and catalyst and left to cure for a few days. The resulting fabric is extremely strong and lightweight, making it a very suitable material for the manufacture of water storage tanks.

Today, many farmers, home and business owners are making the switch to GRP tanks, but what makes GRP the best material for cold water storage tanks?

Glass Reinforced Plastic Water Tank

Reasons Why You Should Use GRP Water Tanks

GRP is Resistant to Corrosion

One of the primary reasons you should consider using a GRP water tank for your storage needs is corrosion resistance. Water storage tanks spend most of their lifetime in harsh environments, such as scorching sun and damp surroundings. If you choose a tank manufactured using a weak material, you may end up having to replace it after a short while.

With a GRP water storage tank, you do not have to worry about corrosion. Whether you plan to use it in an outdoor or indoor environment, the tank offers exceptional corrosion resistance and is highly tolerant to harsh environments.

A GRP tank delivers a practical and long-term solution to the water storage sector’s corrosion problem today. Unlike its traditional alternatives, such as aluminium and steel, a GRP water storage tank has a greater resistance to chloride ion attacks – making it a suitable option for damp, outdoor environments.


Another reason why you should make a switch to a Glass Reinforced Plastic Water Tank is durability. There is nothing as annoying as having to replace the tank after a short while. It costs a lot of money to purchase and install a water tank, especially if you use an underground system.

A GRP water storage tank can last for more than 25 years, provided it is subjected to the normal operating conditions and environment. The life expectancy can be even longer if you are using the tank in an indoor environment. The material may undergo the normal discolouration due to exposure to sunlight, among other environmental conditions; however, it would maintain its sturdiness.

Some of the properties that contribute to the long-life expectancy of the tank are high impact resistance and corrosion resistance. Although the cost of a GRP water storage tank might be slightly higher, it is all worth it as you do not have to worry about replacing it anytime soon.


Another important reason you should switch to GRP storage tanks is their lightweight to volume ratio nature. A GRP tank weighs 75% less than its steel equivalents, which is beneficial in several different ways.

For instance, you do not have to worry about expensive transport costs. Additionally, you do not have to get stressed about hiring heavy lifting equipment during the installation of the tank. Installing steel tanks comes with a lot of work and costs as you have to pay for substantial transport costs and huge installation fees.

With their lightweight nature, GRP water tanks make it easier to use them as temporary options. They are easier to move around and install as they do not require massive equipment for the job. Therefore, you may want to consider these GRP water tanks if you are thinking of storing water temporarily for construction purposes.

Low Maintenance Requirements

Another significant benefit of using a GRP water tank is low maintenance requirements. As we already mentioned, GRP is a highly resilient material that can last well over 25 years. Additionally, it has superior tensile strength and high impact resistance. Therefore, you do not have to worry about refurbishment and maintenance during the entire lifespan.

The only thing that changes a GRP water tank is discolouration, which is only noticeable after years of use and reuse. With fewer maintenance requirements, a GRP tank is a perfect solution for underground systems that are not easy to access. Provided you install them properly, you will enjoy reliable water storage and supply for many years.


GRP is an extremely strong and sturdy material. Its impact resistance is equivalent to that of metallic alternatives – that’s why GRP enclosures and water tanks have become common today. GRP offers a long-term and practical storage solution that beats the challenges facing the sector today. If you need a GRP water storage tank, contact Precolor Tank Division for high-quality and reliable tanks to suit your needs.