For drinking water applications in the USA, the liner material must comply with NSF/ANSI/CAN 61 certification to ensure it is safe for contact with potable water. Fabric selection should guarantee there is no leaching of harmful substances, no impact on taste or odor and strong resistance to bacterial or algal growth. The liner design should also support ease of cleaning and maintenance to help preserve water quality throughout its service life.

When storing processed water, wastewater or liquids containing treatment chemicals, the liner fabric must be matched to the specific chemical profile of the contents. Material compatibility analysis is essential to ensure long-term resistance to degradation, swelling or loss of strength. Selecting the correct chemical-resistant fabric helps maintain containment integrity and extend the service life of the liner.

Water tanks that are regularly filled and emptied place additional stress on the liner through repeated movement, stretching and folding. High-quality, flexible fabrics with excellent crease resistance help prevent cracking or delamination over time. The liner design should account for this dynamic use, ensuring reliable performance through many fill-and-drain cycles.

The size and structural design of the tank directly influence the selection of liner material and configuration. Larger capacities and taller wall heights increase hydrostatic pressure, requiring stronger, more robust fabrics. The tank’s construction, whether steel, concrete or another material, also affects how the liner is secured, supported and reinforced. To ensure a precise fit and long-term watertight performance.