327 IAC 8-3.2-13 Use of dead-end mains

Sec. 13. (a) All dead-end mains shall end with a valve and one (1) additional length of pipe beyond the valve that is properly plugged and capped. (b) All dead-end main end points shall have flushing devices attached to the valve specified in subsection (a) that is sized to provide at least two and one-half (2.5) feet per second and a maximum of five (5) feet per second in the dead-end main during flushing. No flushing device may be connected directly to a sewer. A flushing device shall be selected in accordance with the following: (1) The flushing device shall be a fire hydrant, flushing hydrant, or blow-off assembly if the diameter of the water main pipe is at least six (6) inches in diameter. (2) The flushing device shall be a flushing hydrant or blow-off assembly if the diameter of the water main pipe is less than six (6) inches in diameter.