LAC 51:XII.243. Air Relief Valves

A. At points in water mains where air can significantly accumulate provisions shall be made to remove the air by means of air relief valves. B. When used, the open end of an air relief pipe from automatic valves shall be extended to at least one foot above grade and provided with a screened, downward-facing elbow. C. Discharge piping from air relief valves shall not connect directly to any storm drain, storm sewer, or sanitary sewer.