The cost to make dual supply and dual drainage plumbing accessible for installation of a future onsite alternate water system is lowest during new construction or certain remodels of a bathroom or laundry room when the piping is being installed. In collaboration with California Reach Codes and Greywater Action, the Central Coast Greywater Alliance has produced a drought-ready buildings model ordinance to facilitate, decentralized onsite water reuse throughout the region and the state of California. If you’d like to champion this ordinance in your City or County, we are here to help! Please contact firstname.lastname@example.org
Also, make sure to download this handy illustrated guidebook of dual plumbing configurations to assist contractors in your jurisdiction with ordinance compliance.