Contractor will remove all filter media and laterals from two existing Neptune Benson 84DRF-8 filters. All new media and laterals are to be installed. All adjustable jack legs are to be replaced with new legs. An existing leak shall be repaired by replacing an 8” tee and 4-8” flanges and gaskets. All pipe material to be schedule 80. Contractor to provide all materials, labor and remove all debris from the site.