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All Single • Double <br /> TESTING DOUBLE-WALL TANKS Step 3 <br /> HYDROSTATICALLY MONITORED= Pressurize primary tank to 5 psi maximum. <br /> (WITH LIQUID FILLED ANNULAR SPACE) DO NOT <br /> This tank has a hydrostatic monitoring system that in- ♦ Attach air pressure line to any annular space fitting. <br /> cludes a nontoxic colored monitoring fluid (30% calcium <br /> chloride) between the tank walls. <br /> In the unlikely event of a tank leak, this monitoring fluid <br /> will leave a colored trace on the tank. Do not lift tank with pressure on It. This could re- <br /> Reservoir Level Check: suit In personal Injury. <br /> DO VISUAL AIR/SOAP TEST <br /> ♦ Remove the 4" plug from the reservoir fitting. Step 1 <br /> ♦ Inspect for monitoring tracer fluid. Apply a soapy water solution to all fittings and manways. <br /> ♦ See Section C1 and C3. Step 2 <br /> ♦ If reservoir is completely empty, immediately call Con- <br /> Check for leaks as indicated by bubbles. <br /> tainment Solutions Field Service. Step 3 <br /> Outer Wall Test If bubbles are present, tighten the plugs or bolts and <br /> retest. <br /> INSPECTION INNER WALL TEST <br /> Step 1 Step 1 <br /> Closely inspect outer wall for any trace of colored moni- Release pressure from primary tank. <br /> toring tracer fluid. <br /> NOTE: If a colored fluid Is found on the tank surface Step 2 <br /> during any test,discontinue the installation and imme- <br /> Remove enough tank fittings to see inside primary tank. <br /> (, diately contact Containment Solutions Field Service. Step 3 <br /> BOTTOM INSPECTION With a light, look inside for any accumulation of moni- <br /> toring tracer fluid. <br /> Step 1 NOTE: If a colored fluid is found on the tank surface <br /> Tighten all fitting plugs to the annular space and res- during any test, discontinue the installation and im- <br /> ervoir to avoid spilling monitoring fluid. mediately contact Containment Solutions Field Ser- <br /> Step 2 vice. <br /> Inspect tank bottom by lifting tank using all lift lugs Step 4 <br /> provided on the tank. Replace and tighten fitting plug(s). <br /> Step 5 <br /> Loosen plug to vent annular space. <br /> Do not stand under tank while tank Is In the air. A4. HOLE SIZE <br /> Injury or death could occur. NOTE:If tanks are mechanically anchored,additional <br /> Step 3 minimum clearance is required between tanks(see sec- <br /> After completing inspection of tank bottom, replace tion A7). <br /> tank on shipping pads or on smooth ground. STABLE EXCAVATIONS (FIGURE 5) <br /> DO NOT <br /> ♦ Rotate tank. A <br /> 18"Minimum <br /> PRESSURIZE TANK 24"Preferred <br /> Step 1 A A A A <br /> Connect air compressor line to primary tank fitting. <br /> Step 2 24"Require <br /> on 12'Tank <br /> A contractor supplied pressure relief valve must be <br /> connected to the primary tank for additional pro- `�, jA A <br /> tection. The relief valve should be sized and set to <br /> prevent the tank from being pressurized in excess of <br /> the maximum allowed test pressure. <br /> CONTINUED ON PAGE 8 <br /> 7 <br />