Do I need a permit to install a graywater system?
The CPC exempts graywater systems that collect graywater from a clothes washer only and where no modifications to the plumbing system are required or pumps are used in the graywater system from construction permits but the system must still meet the design and construction standards found in the regulations. All other graywater systems require a construction permit. Plans for graywater systems must be submitted to PRMD or the authorized permitting agency for review and approval of the graywater design. Once the design is approved, a construction permit must be obtained to install the graywater system and allow for inspection by the permitting agency.
