A PVC pond liner will last longer if protected from the elements, such as freezing periods and sunlight. A well taken care of PVC liner, with a protective underlay and properly installed, can last up to 25 years. However, a PVC liner exposed to the sun will quickly become brittle and almost useless in a short amount of time.
As PVC degrades, it quickly begins to leach harmful chemicals or VOCs, volatile organic compounds. In the past, these toxins have been shown to cause irritation in the ear, nose, and throat, as well as other health concerns in humans.
