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Swimming Steel Wall Pool. Disclaimer: This Installation Booklet is to be used ONLY as a basic guide and. information on the installation of an inground steel wall vinyl liner swimming pool. There are multiple construction methods and techniques that can be used in the. construction of an inground swimming pool. In addition, the construction of an.
Butyl rubber and EPDM (ethylene propylene diene monomer - a synthetic rubber) are the two best flexible liners for water garden construction. Each of these materials is UV stable and should last 20 years or more. EPDM and butyl rubber are generally available in 45 mil and 60- or 30-mil thicknesses, respectively.