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WAC 296-307-48045
How must service piping systems be protected?
Service piping systems must be protected by pressure relief devices set to function at not more than the design pressure of the systems and discharging upwards to a safe location.
[WSR 97-09-013, recodified as § 296-307-48045, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW
49.17.040
, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-48045, filed 10/31/96, effective 12/1/96.]