Mechanical Contracting & Plumbing January-December 1909 . Fig. I.—Details of Receiving and Discharging Fig. 3.—Detail of Disposal Fields Showing Distributing Mains, Y Branches, Lateral Lines and Drops. most important question, and this branch the cesspool is a constant source of dan- sewage in the discharging basin reachesof engineering has made wonderful ad- ger from contamination of the water a certain determined height the seal of IO April 1 1909 PLUMBER AND STEAM FITTER a siphon is broken and the entire eon-tents are delivered to a disposal fieldthrough a 4-inch main distributor a
Mechanical Contracting & Plumbing January-December 1909 . Fig. I.—Details of Receiving and Discharging Fig. 3.—Detail of Disposal Fields Showing Distributing Mains, Y Branches, Lateral Lines and Drops. most important question, and this branch the cesspool is a constant source of dan- sewage in the discharging basin reachesof engineering has made wonderful ad- ger from contamination of the water a certain determined height the seal of IO April 1 1909 PLUMBER AND STEAM FITTER a siphon is broken and the entire eon-tents are delivered to a disposal fieldthrough a 4-inch main distributor andfrom this it flows into a number of 3-inch lateral drainage tile branches. Fromthese branches the sewage enterstrenches through the open joints of thepipes, where it comes in contact with theoxygen, held in the interstices of thebroken stone, which attacks the sewage,throwing off hydrogen, nitrogen andother gases. The drainage lines beinlaid but twelve inches deep, the rootsof the growing vegetation absorb thenitrogen, which accounts for the rankgrowth over the field. The question of sewage disposal by
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