WATER SUPPLY, PLUMBING, ETC., FOR COUNTRY HOMES. 37 



Figure 28 shows a type of double chamber septic tank for a family 

 of six people, designed by W. C. Davidson.^ Figure 29 is another 











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Fig. 28.— Double chamber septic tank for six people, suited to conditions where plenty of outlet fall is 



available. 



type of septic tank for a family of eight people. These tanks are 

 suited to conditions where plenty of outlet fall is available. Figure 



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Fig. 29. — Double chamber septic tank for eight people. 



30 is a double-chamber tank for a family of six persons, designed by 

 C. A. Ocock of the Wisconsin Agricultural Experiment Station.^ 



1 Univ. Mo. Engin. Expt. Sta. Bui. 3. 



">• Wisconsin Sta. Circ. Inform. 34. 



