Automatic/manual recirculation valve provided on the seawater overboard are provided……………………….

A. S.W. temperature can be regulated and coolers can maintain correct temperatures even with low S.W. temperatures
B. S.W. temperature can be regulated and coolers can maintain correct temperatures even with high S.W. temperatures
C. S.W. can be re-circulated when outside water is extremely muddy
D. S.W. can be re-circulated to conserve when sea chest suction filters become very dirty

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