SELF-CONTAINED SETS FOR SMALL COUNTRY HOUSES.

Progress, Volume I, Issue 9, 2 July 1906, Page 233

SELF-CONTAINED SETS FOR SMALL COUNTRY HOUSES.

To meet the wishes of a large number of architects the Septic Tank Company, Ltd., London, have designed a self-contained installation as illustrated on page 234, consisting of a septic tank and filter for small country houses, constructed of steel. This being complete in itself only requires to be put in place and the connections made to inlet and outlet. It is capable of treating the sewage of from five to ten people, or a daily flow of from 120 to 200 gallons. The fall from inlet to outlet is sft. The septic tank in these sets is a cylindrical vessel formed of steel plate, and designed and fitted internally to embody the principles which have been found so successful with large installations for treating sewage on the Company's system. It is provided with a removable cover for access when necessary. The inlet is formed with a cast-iron socket piece to take a 4-in. drain pipe. The outlet, which is also in cast iron, is extended sufficiently far to deliver the sewage on to the diverter of the filter. The ordinary flow passes through a regulating orifice ; an overflow is provided at a higher level and discharges into the same outlet. The filter is also a cylindrical vessel formed in steel plate. It is fitted with a perforated inner lining extending its whole depth, through which a supply of air passes to the filtering material. The latter is supported on three perforated trays fixed within this lining. Above the upper tray is a diverter. which receives the flow from the septic tank and automatically spreads it from side to side. This is made in cast iron with brass bearings. The outlet from the filter, which is also of cast iron, is of a size suitable to connect with the socket of a 4-inch dram pipe.