Chapter 17:Sea Suction
Discharge Aft of Intake
Speaking of impurities, do not forget that the
discharge lines—particularly for things like
head pumpout (when it’s legally permissible to
do so)—should be aft of the intake through-
hulls or sea chest. You don’t want to pump
gray or black water back into a deck wash-
down or engine-cooling circuit!Figure 17-15.
One-sided sea
chest section