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OPERATION AND PURGING <br /> NORMAL OPERATION: <br /> ❑ There are four ball valves on the CAS. Each ball valve is to be installed so as to allow opening <br /> and closing with nothing obstructing the full range (900) of movement. In normal operation, only <br /> the valve (A) at the top of the CAS shall be open — the other three valves (B, C and D) shall be <br /> closed. All four valves shall be locked in the above positions. The two plugs (E and F) should be <br /> installed using a non-hardening, UL classified pipe joint compound and tightened to 60 ft-lbs. <br /> DRAINING THE BLADDER: <br /> ❑ Any liquid coming over from the vent system would have collected above the valve (A) in the <br /> riser pipe before going into the bladder. An inspection of the need to drain the bladder is easily <br /> made by removing the plug (E) at the tee on the bottom plumbing of the CAS. Before removing <br /> this plug, open the valve (B) above the tee to release any liquid into the piping below. Wait <br /> approximately 30 seconds and then close the valve (B). Now, remove the plug (E) at the tee <br /> on the bottom plumbing of the CAS — be sure to have a container suitable for gasoline available <br /> to catch fluid. If liquid in excess of 16 ounces (473 ml) drains out, the bladder should also be <br /> drained. <br /> ❑ Should it be necessary to drain the bladder- <br /> 1. <br /> ladder:1. Close the upper ball valve (A) (usually open) leading to the gasoline storage tank vent <br /> lines. <br /> 2. Open the valve (C) that goes to the internal syphon tube. Be sure the other three ball <br /> valves (A, B and D) that connect to the vent lines and CAS are closed. <br /> 3. Remove the plug (E)from the bottom tee and connect an explosion proof evacuation pump <br /> capable of handling liquid. Have a liquid tight, container suitable for gasoline positioned <br /> to receive any fluid that may exit the system and start the pump. If no liquid returns within <br /> 30 seconds, the bladder is dry—discontinue pumping, remove the pump, replace the plug <br /> (E) and return the ball valves to their normal, locked, positions. <br /> DRAINING THE CAS: <br /> ❑ Should it be necessary to drain the CAS (between the bladder and steel wall): <br /> 1. Close the ball valve at the top (A) of the CAS and also the two valves (B and C) on the <br /> vertical risers. <br /> 2. Remove the plug (E) in the bottom tee and place a metal container below the pipe <br /> opening. <br /> 3. Carefully open the ball valve (D) at the bottom of the CAS — observe that the container <br /> that is being drained into does not overflow — empty container as required until fluid no <br /> longer comes from the pipe when the valve is open. <br /> 4. Close the ball valve (D) and replace the plug (E) into the tee. <br /> 5. Return all ball valves to their normal locked positions. <br /> 3-2 <br /> GARB Approved IBM 3-Healy Clean Alp Separator Model 0001 and 9981H-Executive Orders VR-281 and VR-282 <br />