SEPTICIZATION
245. The Process. 246. The Septic Tank. 247. Results of Septic
Action. 248. Design of Septic Tanks. 249. Imhoff Tanks. 250.
Design of Imhoff Tanks. 251. Imhoff Tank Results. 252. Status
of Imhoff Tanks. 253. Operation of Imhoff Tanks. 254. Other
Tanks. 410–430