DISPOSING OF HOUSE SEWAGE FOR FARM HOMES. 



193 



to leave it at a depth of not more than twelve 

 inches beneath the surface of the earth. 

 Where the surrounding land is level this 

 tank may be located quite close to the build- 

 ing where, if covered with earth (and sod- 

 ded over if desired), it will not cause any 

 inconvenience. If more convenient, it may 

 be placed any distance from the house, and 

 the inlet pipe " E " laid along a mound or 

 ridge of earth, and covered with earth to 

 protect it from the frost; this pipe must, 

 under any circumstances, have a slight con- 

 tinuous fall from the building too, and must 

 enter the tank at the top as shown. If, 

 however, there is a considerable slope to the 

 land, the tank may be buried beneath the 

 surface, it being borne in mind that the 

 branches from pipe " D," which may be 

 taken off at any distance from the tank, must 

 not be more than twelve inches beneath the 

 surface and must be perfectly level. From 

 pipe " D " about every two feet ordinary 

 " T " fitting will give just the desired length, 

 are run branches of field tiles (Fig, 2), 4 

 inches in diameter, the total contents of 

 \vhich should be equal to the amount of 

 water which will be discharged at each 

 operation of the valve, and allowing 13 tiles 

 to every cubic foot to be discharged, the 



number required will be readily found. The 

 bend connecting the tank to the system of 

 sub-surface tiles should be of iron, solidly 

 cemented into the bottom of the tank to al- 

 low of the cauking in of the valve with lead. 



The valve described in this article, which 

 is manufactured by the Dominion Flushing 

 Valve Co., of 558 Dufferin street, Toronto, is 

 the only thing of its kind which can be set 

 at any level, will open and close automati- 

 cally, and, as it needs no adjusting it can be 

 put in by almost any person. It overcomes 

 the only objection ever made to the septic 

 tank system, viz., that when the emptying 

 of the tank depended upon a servant or some 

 other member of the family to put a plug 

 at regular intervals, replacing it when all the 

 liquid had escaped, it was sometimes forgot- 

 ten and the tank overflowing caused the pipe 

 between it and the house to fill up, thereby 

 causing a great deal of annoyance and ex- 

 pense. 



It will be noticed that a dividing wall is 

 built in the centre of the tank to a height of 

 about two inches from the top, the latter 

 space being left for the free passage of fresh 

 air. In this partition is built overflow "F," 

 the lower end of which should be " caged "' 

 with wire netting, ^ inch mesh, to prevent 





n^ i. 



