Disposal of House Sewage. 



297 



than six feet in length, three feet deep and three feet wide, divided 

 into two chambers by a partition, the first chamber being large enough 

 to hold the discharge from the house for 24 to 36 hours. 



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Fig. 2. Plan and vertical section through septic tank connecting with underdrainage 



system. 



PLANS OP A SEPTIC TANK. 



The following plans show the different methods of constructing 

 septic tanks suitable for the country house. 



The sewage from the soil pipe enters chamber A, passes diagonally 

 through chamber A to near the bottom of the tank where it enters 

 the opening in the partition and rises through this partition to near the 

 surface of the liquid, where it is discharged into chamber B. It then 

 passes diagonally through chamber B to near the bottom of the tank 



