Figure 6. History of discharge, 10-min filling valve, 2.5-min emptying valve, emptying valve begins opening 1.5 min after
initiation of filling valve operation, upper pool 221.4, lower pool 209.5
Figure 7. History of pressures and water-surface elevation, 10-min filling valve, 2.5-min emptying valve, emptying valve
begins opening 1.5 min after initiation of filling valve operation, upper pool 221.4, lower pool 209.5
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