Specifications include, but are not limited to: Traveling Bridge Sand Filter Install bypass piping from existing filter inlet pipe to chlorine contact basin. Dewater filter basin to onsite treatment lagoon. Remove sand media from filter basin. Spent media to be removed from site per owner’s instructions. Remove all existing porous plates and plate holders. Clean interior of basin of all material prior to installation of replacement parts. Install all specified materials: porous plates, plate holders, sealant, and media per manufacturer’s requirements. Install new caster wheels on existing bridge mechanism. Verify proper alignment and operation. Install new level control on existing bridge mechanism and wire to existing control panel. Verify proper operation. Remove bypass piping to original conditions. All construction debris to be removed by Contractor. Contractor must ensure manufacturer mechanical and electrical inspection prior to media installation. Contractor must start up unit and provide training.