Hydrostatic test.

RCW 70.79.270
in effect
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If at any time a hydrostatic test shall be deemed necessary to determine the safety of a boiler or unfired pressure vessel, [the] same shall be made, at the discretion of the inspector, by the owner or user thereof. If at any time a hydrostatic test shall be deemed necessary to determine the safety of a boiler or unfired pressure vessel, [the] same shall be made, at the discretion of the inspector, by the owner or user thereof.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=70.79&full=trueFetched: 6/29/2026

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