. Annual report of the Missouri State Board of Agriculture. Missouri. State Board of Agriculture; Agriculture -- Missouri. Disposal of House ticicage. 299 tern of drain tile aud permitting it to escape by percolation through the soil as in Figs. 4 and 5. Where a sand filter is used and the discharge is on the ground sur- face, it is necessary to construct the tank above ground unless its loca- tion is on a side hill, and it would necessarily have to be at some dis- tance from the buildings, as the filter should be exposed to the air and the surrounding soil would be kept wet by seepage unless
. Annual report of the Missouri State Board of Agriculture. Missouri. State Board of Agriculture; Agriculture -- Missouri. Disposal of House ticicage. 299 tern of drain tile aud permitting it to escape by percolation through the soil as in Figs. 4 and 5. Where a sand filter is used and the discharge is on the ground sur- face, it is necessary to construct the tank above ground unless its loca- tion is on a side hill, and it would necessarily have to be at some dis- tance from the buildings, as the filter should be exposed to the air and the surrounding soil would be kept wet by seepage unless there is underdrainage or running water. 3r-a/r} Ti/e 4' " ?M Tjf -Trorrt ?fT,/r Ter'U oufhr 6 — •n ?tt. J)ra'n T,/e 4' Fig-. 5. System of drain tile used in connection witii automatic valve. A tank arranged to discharge into a tile system, Fig 5, is more gen- erally used for the individual houses than the sand filter. This method requires chamber B to be fitted with an automatic valve as shown at B, Fig. 4. This valve permits chamber B to fill with sewage, which would require from 24 to 36 hours. When the chamber is full the valve opens and the liquid flows out through a line of pipe to the tile system, Fig. 5, where it is absorbed by the soil. This tile system is made of ordinary drain tile with open joints. As the absorptive power of the soil and the circulation of air through the soil decreases as the depth increases, the tile should be laid not over ten or twelve inches in depth, unless the soil is very porous. This tile system for proper distribution of the liquid should be laid level, and the capacity of the tile for holding liquid should be about ten per cent, larger than the capacity of the valve chamber. The pipe connecting the valve chamber with the tile system should have cemented joints to prevent leakage be-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearan
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