Sec. 15.07. When blow-down valves are opened to discharge the compressed air tube, they shall remain open until time to place the tube in the next borehole.
27 words·~1 min read·
/il/chapter-225/act-705/15-07A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
Sec. 15.07. When blow-down valves are opened to discharge the compressed air tube, they shall remain open until time to place the tube in the next borehole.