Section M2101—Hydronic piping systems installation.
M2101.3 Protection of potable water. The potable water system shall be protected from backflow in accordance with the provisions listed in Section 603 of the state plumbing code.
[Statutory Authority: RCW 19.27.031 and 19.27.074. WSR 23-02-058, 23-12-104, and 23-20-024, § 51-51-2101, filed 1/3/23, 6/7/23, and 9/25/23, effective 3/15/24; WSR 16-03-025, § 51-51-2101, filed 1/11/16, effective 7/1/16.]
