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Show Subsection 207( f)( 2)( G). Requirements for the insulation of hot water pipes in all new construction. • Utah's Uniform Building and Plumbing codes should not be changed to require the insulation of all hot water pipes in all new construction. Insulation of hot water pipes is costly and does not save a significant amount of water. Subsection 207( f)( 2)( H). Requirements for the installation of water recycling or reuse systems on any newly installed commercial and industrial water- operative air conditioning and refrigeration systems. • The State Department of Commerce, Division of Business Regulation and Licensing, should amend the Uniform Mechanical Code to require recycling and/ or reuse in newly installed commercial and industrial water operative air conditioning and refrigeration systems. Almost all new installations of water operative cooling systems in Utah and other states are the recycling type. Designing or specifying once- through systems for new construction is not considered good engineering practice. Subsection 207( f)( 2)( I). Standards governing the sale, installation, and removal of self- regenerating water softeners, including the identification of public water supply system service areas where such devices are prohibited, and the establishment of standards for the control of regeneration in all newly installed devices. • Amend the Uniform Plumbing Code in Utah to require new ion exchange water softeners be of the high efficiency salt demand type. • The Utah Department of Environmental Quality should evaluate the feasibility of using lime softening as part of the surface water treatment process as a water quality enhancement. • The Bureau of Reclamation should investigate the cost effectiveness of lime softening at surface water treatment plants in the Colorado River drainage for water conservation, water reuse and reduction of salinity in the Colorado River Basin. The results of this investigation should be reported to the Colorado River Basin Salinity Control Forum. High efficiency water softeners could reduce the TDS levels in wastewater systems and significantly improve the reusability of the waste stream. The lime softening process efficiently improves the quality of wastewater and its potential reuse. 5 |