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E. The pumping/pressurizing and make-up water measuring equipment shall be <br />provided by the Contractor and approved by the Engineer prior to testing. The <br />pressurizing equipment shall be designed and operated in a manner that will <br />minimize pressure surging and pulsing within the pipe. <br />F. The Contractor shall provide and install a temporary valved tap with a 1/4" FPT <br />connection to receive the pressure gauge in each pipe run to be tested. Upon <br />satisfactory completion of testing, the Contractor shall remove and plug the pipe. <br />G. In preparation for testing, the pipe shall be slowly filled with clean water from an <br />approved source, taking care to purge all air pockets. Water remaining in the pipe <br />system after flushing may be used and supplemented as necessary with prior approval <br />by the Engineer, and clean test water may be reused for sequential testing of pipe <br />segments. <br />H. In conducting the test, water shall be pumped into the full pipe until test pressure is <br />attained, and make-up water shall be added as soon as the pressure drops to 5 psi <br />below test pressure. All make-up water shall be accurately measured, and the total <br />test leakage shall be defined as the volume of make-up water added. <br />I. Should the tested section fail to meet these requirements, the Contractor shall, at his <br />own expense, locate and repair the defects and retest the section until it is acceptable. <br />J. Immediately upon completion of a passing pressure test, all valves shall be operated <br />to insure their full opening and closing. <br />02535 — Testing Force Mains <br />02535 - 3 <br />r <br />