Wash. Rev. Code § 47.32.070
Six days after filing of the order above provided for, if no review thereof be taken to the supreme court or the court of appeals of the state, the clerk of the court shall issue under seal of such court a writ directed to the sheriff of the county in which such court is held commanding him or her to remove, take into custody and dispose of the property described in such order and make returns thereof as provided for such writ by said order. On receipt of such writ it shall be the duty of such sheriff to obey the command thereof, proceed as therein directed and make return within the time fixed by such writ; and said sheriff shall be liable upon his or her official bond for the faithful discharge of such duties. Upon filing of such return the clerk of court shall make payments as provided for in the order of court. If by the sheriff's return any of the property seized and removed pursuant to such writ is returned as unsold and as of no sale value, and if the court or judge thereof be satisfied that such is the fact, the court or judge thereof may make further order directing the destruction of such property, otherwise directing the sheriff to give new notice and again offer the same for sale, when, if not sold, the same may on order of court be destroyed.
RCW 47.32.070