Valley R Baptist 2-LR020828FH: 110. n,t. ll%1:54HH Fe
GRIFFITH CONSTRUCTION CO., INC.
THE FOLLOWING TEST PROCEDURES ARE PERFORMED WHEN WE TEST A MANHOLE: PLUG ALL MANHOLE
ENTRANCES AND EXITS OTHER THAN THE MANHOLE TOP ACCESS USING SUITABLY SIZED PNEUMATIC
OR MECHANICAL PIPELINE PLUGS. INSTALL THE VACUUM TESTER HEAD ASSEMBLY AT THE TOP ACCESS
OF THE MANHOLE. ATTACH VACUUM PUMP TO TEST HEAD AND START PUMP. OPEN INLET/OUTLET
BALL VALVE AND EVACUATE THE MANHOLE TO to "HG( APPROX. - 5PSIG, 0.3 BAR). CLOSE VACUUM
INLET /OUTLET BALL VALVE AND MONITOR VACUUM FOR SPECIFIED TESTING PERIOD.
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INC. INSPECTOR Kwk_