SEPTIC TANK STUDIES 



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Diagram 11. Details of Receiving Chamber, Tip Bucket, and Collecting Wells. 



A, Receiving chamber, viewed from above. 



N, M, and S, outlets to north, middle, and south tanks. 



B, Cross-section of tip bucket. 



U-shaped cross-section above is the supply trough 

 from the sewer main. 



C, Vertical cross-section of a collecting well. 



X-Y is line of flow from tank to disposa" line. 

 Wavy line is ground level. 



Top of vertical tile is open and bottom is plugged 

 with cement to form well.' 



