How long should a pool liner last?

It is predicted that a liner should last for approx. 7 to 10 years; however there are liners that are more robust and can last for about 10 to 20 years. There are different grades of liners, with different life expectancies, for example the standard 20thou (0.5mm) and 30thou (0.75mm) liners carry a  5yr pro rata warranty but usually last for around 10 years, whereas the much thicker 60thou (1.50mm) liner has a pro rata warranty of 10 and could last for around 20yrs. (this all depends on the after care of the liner by the customer)

To guarantee a longer life for all pool liners, it is recommended to keep the swimming pool well maintained using the correct pool chemicals and keeping the water temperature within the recommended limits.