A manual of practical hygiene for students, physicians, and health officers . ld be removed periodically through the clean-out, 516 HABITATIONS, SCHOOLS, ETC. which is oloseil bv the cover C. A larger and more complicated ajipa-ratiis is slunvu iu Fi^^. 70. Here the chamber is enclosed in a jacket,A B, through which cold water is allowed to circulate. The dirtywater enters through /and discharges from the upj)er branch O, whichis vented through T. The grease accumulates at G, and is removedthrough the top, which is closed by the hinged cover C. There are many other forms of grease interceptors
A manual of practical hygiene for students, physicians, and health officers . ld be removed periodically through the clean-out, 516 HABITATIONS, SCHOOLS, ETC. which is oloseil bv the cover C. A larger and more complicated ajipa-ratiis is slunvu iu Fi^^. 70. Here the chamber is enclosed in a jacket,A B, through which cold water is allowed to circulate. The dirtywater enters through /and discharges from the upj)er branch O, whichis vented through T. The grease accumulates at G, and is removedthrough the top, which is closed by the hinged cover C. There are many other forms of grease interceptors, but none is per-fect, for under the most favoring circumstances some grease will escapeand may congeal on the surface of the waste-pipe or drain. All greasetraps should be attended to at short intervals, else they may becomealmost c()m])letely filled with solid grease. Loss of Seal.—Traps may lose their seal in various ways : bysiphonage, by evaporation, by back pressure, by leakage, by accumu-lation of sediment, and by capillary attraction. The most important Fig.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishe, booksubjecthygiene
