. Public health and preventive medicine. Fig. -D trap. 3hort to reach the water at all. (5) They are difficult to152) has the same disadvantages, with the exception. Fig. 155.—Mansergh trap. even be tooclean properly. The Antill trap (Fujof No. 3. The Dipstone or Masons trap (Fig. 153) is most obnoxious, because— (1) The unventilated cover is rarely air-tight; (2) it is not self-cleansing, and becomes filled with deposit; (3) it is noteasily cleaned ; (4) it frequently leaks. The D trap (Fig. 154) is of faulty con-struction, and is not self-cleansing. The Mansergh trap is a better variet


. Public health and preventive medicine. Fig. -D trap. 3hort to reach the water at all. (5) They are difficult to152) has the same disadvantages, with the exception. Fig. 155.—Mansergh trap. even be tooclean properly. The Antill trap (Fujof No. 3. The Dipstone or Masons trap (Fig. 153) is most obnoxious, because— (1) The unventilated cover is rarely air-tight; (2) it is not self-cleansing, and becomes filled with deposit; (3) it is noteasily cleaned ; (4) it frequently leaks. The D trap (Fig. 154) is of faulty con-struction, and is not self-cleansing. The Mansergh trap is a better variety(Fig. 155). Having passed the trap, the waste watersflow along to join the main house drain orthe tanks are useful both hi the case of sewage and waste waters, and are best suited for use with iron pipes, as too frequent flush is apt to damage those of earthenware. They may be automatic or non-automatic in action, and in the case of a house may be supplied from stored ablution-, or rain-water. A flush tank is placed at the head of the drain to be flushed, and the discharge must be copious, sudden, and powerful, run full-bore and sweep all before


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectprevent, bookyear1902