GRP Tank Issues

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Common GRP Storage Tank Issues

Throughout our many years of experience operating in the water treatment industry, we have refurbished and relined a vast number of GRP cold water storage tanks. Most of these were just a few years old and had already began to leak at the joints between the sectional panels due to deterioration of the tank's mastic.

Leaking Cold Water Storage Tank London
Corroded Tank Before Refurbishment
Refurbished (relined) water storage tank London
Tank Fully Refurbished

It is a common misconception that all leaking and corroded cold water storage tanks should be replaced with new glass reinforced plastic (GRP) cold water storage tanks. An internal tank reline solution should always be considered to avoid costly and disruptive replacement works.

Leaking GRP Water Tank Joints in London Liverpool Street
Leaking GRP Tank Joint
rusty and corroded GRP cold water storage tank London
Corroded Tank Joints
Ruptured GRP Tank
Ruptured GRP Tank

Black Spores - A Serious Concern

The occurrence of black spore fungi beneath the internal gel coat is another issue that often occurs in GRP cold water storage tanks. This issue is often only noticed when a Legionella risk assessment or tank inspection is carried out.

This problem has been highlighted as a ‘Red Alert’ in the HSE guidelines HSG274 Part 2: The control of legionella bacteria in hot and cold water systems.

Please refer to page 26 after clicking on the following link for more information

black spore fungus (mould) in GRP cold water stoage tank

Hollow Internal Tank Supports

Another common issue that has been highlighted in more recent years is the presence of hollow cold water storage tank roof supports, typically used in many GRP tank installations. 

The HSE guidelines HSG274 part 2 has now highlighted hollow cold water storage tank roof supports as being non-compliant and therefore recommends that all hollow supports are replaced with solid WRAS approved cold water storage tank roof supports that do not allow for the stagnation of water or any possibility of harbouring harmful bacteria such as Legionella.

Please refer to page 26 after clicking on the following link for more information

water storage tank refurbishment in London, Essex, Kent, South East
Non-Compliant Hollow Tank Supports
water storage tank repaired by replacing tank supports
Replaced With Solid Internal Tank Supports

New GRP Tank Installations

Another major downside to carrying out cold water storage tank replacement works is the fact that the majority of GRP tank manufacturers in the UK will only warranty new tank installations for a maximum period of 12 months.

Whereas Echo Square tank relining specialists will guarantee all refurbishment and relining projects carried out by our in house operatives for up to 15 years against leaks and corrosion for a fraction of the cost of a full cold water storage tank replacement.

Should you have any GRP water tank issues similar to any of the examples above why not see how Echo Square tank relining specialists can help you?

15 Year Guarantee on Tank Reline Projects in England, Scotland, Wales & Ireland

Buy With Confidence

The quality of our product combined with our skilled team of applicators means we can offer a comprehensive guarantee of up to 15 years.

You can rest assured that Echo Square - Tank Relining will provide the very best service from start to finish and emergency backup should you ever need it.

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