There are many kinds of water tanks which are used in buildings and worksites, and unfortunately these tanks aren’t always issue free. If you’ve recently noticed any new stains, leaks, or patches of corrosion, then it’s possible that you have a problem which, if left alone, will deteriorate further, potentially leading to contamination, water damage, and further complications and disruptions to your business.

The good news is that you don’t necessarily need to replace tanks which are failing. This will only be necessary in the worst cases, as it’s by far the most expensive option. Relining the tank is often the most appropriate solution, and simply consists of placing a new, durable lining inside the tank, made from high-quality polyurethane, which will add years of life to your tank.

Cost effective repair method

One of the major advantages of relining is the reduced cost. Replacing the tank entirely involves sourcing and purchasing a tank, removing the old tank, and installing and integrating the new one.


The method of tank lining that we use can be used with tanks for water storage, and is suitable for multiple other kinds of tanks and fluid containers; these include oil tanks, alcohol tanks, fire sprinkler systems, cooling towers, and interceptors.

Faster and more secure

Relining tanks is also both faster and more secure than replacement. Our team of experienced experts can carry out the work rapidly and safely, keeping any disruption to your business at an absolute minimum.

Stopgap water tanks

While work is being carried out, we can supply a stopgap solution to water supply, allowing you to continue with normal operations.

Resistance to chemicals and corrosion

The polyurethane method of relining that we use may make your tank more resistant than it was originally, with long lasting protection against chemicals and any more corrosion issues.

Microbial protection improvements

The fact that our relining system is without seams means that the smooth and strong finish is incredibly effective at combating microbial build-up and other pathogenic issues.

Approved by the WRAS

The polyurethane that we use is free of solvents, and has been approved by the WRAS for use in potable water systems.

Allows for movement

The lining system we use is tough and slightly flexible, meaning that slight structural movement won’t lead to cracks or other damage.

Maintenance savings

The lining is not only tough but incredibly easy to clean and maintain.

How can damaged water tanks potentiate risk?

If a tank is beginning to fail, it can corrode, and seals and joints can begin to fail. Collections of tiny cracks and pits on the surface can also create breeding grounds for bacteria such as Legionella and Pseudomonas. These types of build-ups can be highly dangerous, and lead to water quality and safety issues.

A primary indication that you have issues with your tank could show up in water monitoring procedures – if you have a device to monitor water quality, this may be a way of testing for faults. You may get warnings of Legionella, and the levels of bacteria present will begin to rise. It is also possible that staining and sediment in the bottom of the tank will develop, and small pools below could appear.

There are also some more subtle signs of damage; corrosion on steel or other metal components may occur, and a type of slime called biofilm could appear on the surfaces inside the tank. These are all potential indicators that you need to have your tank serviced, and potentially relined.

The most important thing with tank issues is to act quickly. While relining is a far better option than replacement, for the reasons listed above, it is only possible up to a certain stage of damage. If the damage has gone too far, Water Treatment Services can also take you through replacement options, and carry out the most appropriate replacement solution that’s decided upon.