Is your leaking concrete tank in need of patching? Is your underground concrete tank porous and capable of absorbing pollutants? If so, then it’s time that you should get a high-quality water tank liner that prevents leakages, corrosion, and possible potable water contamination.

Here is a post that will provide you with insightful tips on how to choose perfect concrete water tank liners.

Why Line Your Custom Water Tanks?

Concrete water tank liners are impermeable and non-porous to water and most other liquid solutions.

These layers of non-porous and thick materials are used in creating a waterproof coating on your tank’s surface to prevent leakages, contamination, and corrosion. The fabric-like tank lining material also protects your concrete tank from normal wear and tear.

Apart from the practical need of a tank liner, the regulations of the Environmental Protection Agency (EPA) require that all tanks with a capacity of 110 gallons should have a proper tank liner.

Types of Tank Liners

Tank liners are made from heavy-duty fabric-like material that is corrosion and water-resistant. There are different types of tank liners. Most common tank liners are made from materials such as epoxy, polyurethane, zinc, vinyl ester, stainless steel, and polyurea.

Steel is a typical tank lining material because steel has served the water transportation and storage industry for over 15 decades. Different tank liners suit different tanks and situations. As such, the choice of a tank liner depends on the location of your tank, the condition of the tank, and the material of your tank and the cost of the coating.

What Are the Qualities of a Good Tank Liner?

Choosing ideal custom tank liners can be challenging, but here are tips on what you should consider getting the best tank liner.

Nsf-61 Certification

The NSF-61 Certification is an essential rule when selecting a concrete water tank lining material meant for use on drinking water tanks. The NSF-61 certification is given after a thorough inspection that ensures that the lining material doesn’t have additives or materials that can cause health hazards.

Some tank lining materials such as PVC have additives and plasticizers that make them more flexible, but additives such as plasticizers can cause harm to humans. As such, concrete tank liners with harmful additives don’t have NSF-61 Certification, and they shouldn’t be used when lining your concrete tank.


An ideal tank liner should be durable. A durable tank liner can bear lots of wear and tear, and you’ll be sure that it can protect your tank for a long time. As such, the tank liner should be puncture and corrosion-resistant. If your tank gets exposed to the elements of weather, then you should consider its weather resistance capability.

Exposure to ultraviolet radiation and lots of heat can cause degradation, which may weaken the concrete water tank liner.

Heavy-Duty Flexible Tank Liners Should Be Impermeable

Concrete water tank liners or coatings should be impermeable and waterproof to hold your drinking water within your tank. The seams of your water tank lining layer should also have no cracks or punctures that allow leakages.

Installation or Application

Ideal custom linings should be easy to apply or install in your concrete tanks. A complex tank liner installation process may increase the cost of the coating or maintenance of your tank.

You should thus ensure that you choose a kind of liner that is easy to install. If possible, you should choose concrete water tank liners that you can even apply as a DIY project.


An ideal and affordable water tank lining material should get you the most extensive square foot coverage at a low price. To get the best pricing, it’s always advisable to visit different hardware stores and where possible, find clearance sales with low price offers.

The lifespan and effectiveness of different concrete water tank liners vary, and you should consult your specialist to learn about the best kind of tank liner to buy. You should at least ensure that your concrete water tank liner is impermeable, durable, NSF-61 Certified, and capable of getting installed with ease.