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anLEAK DETECTION <br /> TECHNO LOG 1 E SLLC <br /> 1400 East Paseo Pavon • Tucson,AZ 85718 • Phone 520.207.4878 • FAY: 520.509.3720 <br /> • www.LeakDetect.net <br /> period. Static ballasted tank do require additional time to test so when ever <br /> possible the contractor should remove all ballast. <br /> Systems: <br /> 1. LDT has no restrictions to the MDleaksm Method. <br /> 2. LDT has several chemical markers so site contamination by a single <br /> chemical marker is not a consideration or limitation. <br /> 3. It is best for the contactor to find the majority of the leaks using whatever <br /> method they can. Small leaks are best left to LDT crews to pinpoint and <br /> repaired then for the contractor to spend hours looking for these little leaks. <br /> 4. Fast identification and leak location substantially reduces repair cost. <br /> General: <br /> 1. Extraction plugs should be installed and sealed properly <br /> 2. A construction crew shall be onsite during the test period. This crew should <br /> be equipped to repair any portion of the system. <br /> 3. The MDleaksm method can test piping containing liquids. However if a liquid <br /> is present additional time and cost will be incurred. <br /> Product Piping: <br /> 1. The contractor shall have all shear valves plug or capped using steel not plastic <br /> fittings and connected to the piping. <br /> 2. It is best to complete the turbine connections before the Pretest. Locating and <br /> repairing fittings within the tank sumps during the pretesting is more efficient <br /> and less confining than during the final ELD testing. <br /> Secondary Piping and Connection: <br /> 1. MDleak-does not require special fittings to be installed by the contractor. <br /> 2. The contractor should use standard California approved factory secondary <br /> termination fittings or boots. Termination fittings in California require test <br /> ports. Test ports shall be accessible to the LDT Technician. <br /> Vent Piping: <br /> 1. Extraction plugs should be installed and sealed properly <br /> 2. Vent risers should be caped and should include test ports on each vent riser <br /> VR Piping: <br /> 1. Extraction plugs should be installed and sealed properly <br /> 2. VR piping at the UDC should also be caped or plug using steel not plastic <br /> fittings. <br /> Author David Rabb <br /> 2of 2 <br />