PVC is durable and easy to use, making it a perfect liner for beginners. Adhesive will seam and patch PVC and requires no expensive equipment. PVC liners should be buried, the same as PVC pipe. PVC has carbon black as a UV inhibitor, however prolonged UV exposure will degrade PVC over time. Buried PVC liners will have a life of 20 years or more. Exposed PVC liners last a few months to a year, depending on the thickness of the liner.