30 



M. S. GORDON AND R. A. BOOLOOTIAN 



Figure 1. — Upper level of the basement pumproom. Sea-water system components include the two 

 concrete main storage tanks (A, B), the two redwood gravity filter tanks (C, D), the redwood 

 main supply tank (E), and one of two Transite pipes (F), leading from openings in the pave- 

 ment outside the building, through wliich new sea water is added to the system. The Transite 

 main return line from the building, suspended from the ceiling, crosses the center of the figure. 

 Water returns to the storage tanks at the right-hand edge of the figure. Since this photograph 

 was taken, the interiors of both storage tanks have been painted white with a nontoxic plastic 

 paint. This facilitates their use as aquariums for larger animals. 



large-diameter valves are of the dia- 

 phragm type, with neoprene-rubber gas- 

 kets. Water tables in aquarium rooms 

 and classrooms are fitted with banks of 

 hard-rubber stopcocks (fig. 4). They are 

 also supplied with hard-rubber com- 

 pressed-air lines. The water tables them- 

 selves are constructed of reinforced 

 concrete. 



Each of the three aquarium rooms has 

 a large Pyrex glass countercurrent heat 

 exchanger fitted into its sea-water supply 

 line. Each of these heat exchangers is 



supplied with refrigerated fresh water 

 from individual refrigeration units in ad- 

 jacent parts of the building. Thermo- 

 stats allow fixing of the temperature of 

 the sea water leaving each heat exchanger. 

 Specific setups in the three aquarium 

 rooms and on each of the classroom water 

 tables are modified according to need. 

 There is a general rule excluding all metal 

 from the system. Accordingly, any aquar- 

 iums with metal frames introduced into 

 the system must be fitted with constant- 

 level overflow siphons. In addition, rub- 



