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Home Sanitation and Hygiene: Wilson

Simple flush tank. (E. T. Wilson.) to be constructed of concrete. The sewage from the house-drain is first screened by means of a wire basket so arranged as to be removable through a convenient manhole with a cast iron or other solid cover -a second basket being substituted while the first is emptied and cleaned.

The small residue caught by the basket should be promptly spaded into the ground.

The object of this flush tank is merely to collect the household wastes for a period of from 12 to 24 hours to admit of their intermittent discharge at fixed intervals. Hence the tank, if equipped with an automatic syphon as shown in the illustration, need be only large enough to hold the household wastes for the desired period between the automatic discharges. A capacity of 48 cubic feet is sufficient for a family of 6 using 60 gallons of water a day for each person. The depth of the tank may be determined by the syphon, the other two dimensions to give the required cubic capacity being a matter of convenience. The necessary concrete "forms" for this flush tank or HOME SANITATION AND HYGIENE the septic tank previously illustrated can be built by any carpenter or person handy with tools from the accompanying drawings. The concrete for the walls can be mixed and laid by any householder who will follow the instructions elsewhere given. The average cost for material in most localities for this flush tank will be about $25. For the septic tank previously shown about $150.