Water tanks require several different components to ensure the water they contain is safe for consumption. One essential part of a water tank is a liner. For tanks that contain water for human consumption, 100% of these tanks need to have protective coatings and linings. Liners play a crucial role in preventing leaks and ensuring the water doesn’t become contaminated. They can even extend the service life of your tanks. But how do you choose the right water tank liner? Let’s explore a few important factors to consider when choosing a liner for water tanks.


Impermeability: A tank liner or coating, whether it’s chromium plating, concrete water tank liners, or other custom linings, needs to be impermeable. The liner needs to essentially be waterproof and have seams that prevent leaks. If a liner begins to leak, it could either cause contaminants to enter the tank or it could result in what’s stored in the tank to leak out. Either way, the end result won’t be good. So permeability is something that should be considered.

Level of durability: Along with being impermeable, a tank liner should be overall extremely durable. Not only do liners need to be durable when it comes to general wear and tear, but they should be resistant to punctures as well. Furthermore, if the tank is outside, weather resistance should be considered as well. No matter what the tank is exposed to, the liner or coating inside should be durable enough to withstand it.

Application: When it comes to choosing a tank liner, there are several options to choose from. Chemical liners, chromium plating, and flexible tank liners are just a few options you may want to consider. The type of liner you choose will depend on the application for the liner — liners for drinking water tanks may need to serve different purposes than liners for agricultural tanks. It’s important to think about the application of the liner to ensure you truly choose the best liner for your needs.


Choosing the right tank liner is essential to ensuring the tank will be able to effectively hold what is inside. Whether it’s water, chemicals, or wastewater, the right liner can be the difference between safely containing liquids and experiencing a leak or contamination.