Laserfiche WebLink
2. Pressure piping shall be tested in accordance with AWWA C600, latest <br />revision. <br /> <br />3. After the new piping has been laid and backfilled, it shall be pumped to a <br />pressure of one and one half (1½) times the maximum working pressure, or <br />150 psig, minimum, as applicable, and visible leaks stopped by approved <br />methods. <br /> <br />4. After pressurizing the pipe, before beginning the leakage test, and in the <br />presence of representatives of the ENGINEER, bleed water from the far end <br />of the pipe until a noticeable drop is apparent on the gauge. <br /> <br />a. The line will then be re-pressurized and the test begun. <br /> <br />5. The test shall be maintained for two hours, but may be continued for one <br />additional hour if it becomes apparent that the leakage is equal to, or greater <br />than, the amount allowable. <br /> <br />6. Where applicable, and when permitted by the ENGINEER, the <br />CONTRACTOR may fill the line, and pressurize it prior to testing, to allow <br />the pipe lining to saturate. <br /> <br />7. Water supplied to the main during the test to maintain the required pressure <br />shall be measured by a 5/8-inch meter installed on the discharge side of the <br />test pump, or by pumping from a calibrated container. <br /> <br />a. Exhaustion of the supply or the inability to maintain the required pressure <br />will be considered test failure. <br /> <br />b. At the conclusion of the test, the amount of water remaining in the <br />container shall be measured and the results recorded in the test report. <br /> <br />8. Provide a suitable pressure gauge, recently calibrated by a testing laboratory <br />acceptable to the ENGINEER. <br /> <br />a. Copy of certification of calibration table shall be available during the test <br />and shall be submitted with the test report. <br /> <br />9. Maximum length of pipe in one test shall be 2,000 linear feet. <br /> <br />a. If the CONTRACTOR wishes to test a longer length of pipe, the <br />allowable leakage shall still only be based upon on 2,000 linear foot <br />pipeline segment. <br /> <br />b. After successfully tested segments of the pipeline have been joined <br />together, re-pressurize the pipeline and inspect the exposed joint(s) for <br />evidence of leakage. <br /> <br />City of Sunny Isles Beach <br />NE 174th Street Roadway Improvements <br />15105 - 30 Pipes and Tubes <br />14-1758 / 09-19-2014 <br />