Figure 9.-Salt-water facilities, showing large fiberglass storage tanks (upper right-hand corner) and three sizes 

 of fiberglass tanks inside of laboratory. As far as we can determine, this is the first use of large fiberglass tanks 

 as storage tanks for sea water. Lower right-hand picture shows fiberglass-covered wooden tab^. Salt-water 

 system consists of a dual set of PVC (polyvinyl chloride) pipes from storage tanks to Inside of laboratory The 

 dual pipe system is alternated weekly-one system Is used for salt water while the other system Is held as a 

 standby with fresh water for killing organisms that foul the pipes. 



