Defoamer injection time
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I would like to ask the experts here: how is the timing for injecting the defoamer in your systems determined? What is an appropriate level for the injection amount?
Reply to 1# lijianhuai: We usually inject it six hours before cutting the tower, and continue to use the defoamer until the old tower is completely cut.
Add the defoamer simultaneously during the recovery process, and stop adding it after it is completed.