WAC 296-835-13015. Meet specific requirements if you use a flow coating process

(1) You must make sure all piping is substantial and rigidly supported. (2) You must make sure the paint is supplied by a: (a) Gravity tank that does not hold more than ten gallons (38 L); or (b) Direct low-pressure pumping system. (3) You must have an approved heat-actuated device that shuts down the pumping system if there is a fire. Note: The area of the sump, and any areas on which paint flows, should be included in the area of dip tank.