WAC 16-230-655   Use restricted herbicides -- Eastern Washington -- Ground equipment pressure requirements.  Pressure shall not exceed twenty-five pounds per square inch at the nozzles: Provided, That pressure up to fifty pounds per square inch at the nozzle may be used for equipment with handguns, up to ninety pounds per square inch at the nozzle manifold for an invert system: Provided further, That when using a LP 8002 nozzle instead of a regular 8004 or equivalent, the maximum pressure shall be fifteen pounds per square inch at the nozzle.



[Statutory Authority: Chapters 17.21, 15.58, and 34.05 RCW. 07-11-041A, § 16-230-655, filed 5/9/07, effective 6/9/07. Statutory Authority: Chapters 15.58 and 17.21 RCW. 88-05-033 (Order 1965), § 16-230-655, filed 2/12/88; 87-09-015 (Order 1923), § 16-230-655, filed 4/6/87; 80-03-041 (Order 1680), § 16-230-655, filed 2/20/80.]