St. Louis Zoo, Sea Lion Sound is a 240,000-gallon saltwater exhibit holds California Sea Lions and Harbor Seals and features a 35-foot-long underwater viewing tunnel. Satchell Engineering & Associates designed the aquatic Life Support System for this exhibit that consists off vertical sand filters and pumps, bead filters and pumps, saltwater recovery systems, deaeration towers, ozone disinfection, off-gas destruct, chlorinators, and heat exchangers.
