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	How Are Sewer Mains Cleaned? Take a look inside your sewer pipes. Watch crews "flushing the main" of rocks, grease, grass and other nasty stuff!
	Learn the "Grease Equation" See how yucky grease can clog your sewer pipes. Watch the Grease Team in action and learn how to keep our bays and beaches free of pollution!
More Great Videos! See the Metropolitan Wastewater all surface vehicles cruising the canyons of San Diego and a lot more fun and exciting sewer action!