RCW 57.02.100
Single-family homes and townhouses—Multipurpose fire sprinkler systems.
(1) A water-sewer district may not prohibit the use of multipurpose fire sprinkler systems that are part of a structure's plumbing system for single-family homes and townhouses as defined by the state residential building code or require a separate water meter or backflow preventer for the multipurpose fire sprinkler system.
(2) For the purposes of this section, "multipurpose fire sprinkler system" means a fire sprinkler system that:
(a) Is supplied only by the purveyor's water;
(b) Does not have a fire department pumper connection;
(c) Is constructed of approved potable water piping and materials to which sprinkler heads are attached; and
(d) Terminates at a connection to a toilet or other plumbing fixture to prevent stagnant water.
[ 2016 sp.s. c 14 § 1.]
Structure Revised Code of Washington
Title 57 - Water-Sewer Districts
Chapter 57.02 - General Provisions.
57.02.001 - Reclassification of water and sewer districts—Previous actions valid.
57.02.010 - Petition signatures of property owners—Rules governing.
57.02.030 - Title to be liberally construed.
57.02.045 - Approval by county legislative authority final, when—Boundary review board approval.
57.02.050 - Multicounty districts—Delegation of duties—Exceptions.
57.02.080 - Water-sewer districts desiring to merge into irrigation districts—Procedure.
57.02.100 - Single-family homes and townhouses—Multipurpose fire sprinkler systems.