Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances . e, may lose sufficient waterby evaporation to destroy the water seal and allow the sewer gasto escape. In the use of the Bower trap such occurrence is muchless likely to take place. Fig. 97 is another trap much used on sinks; it is known underthe trade name of the Clean Sweep trap. The part ( is nuichlarger than the common trap and the water seal is less likely to 104 MECHANICS OF THE HOUSEHOLD be broken. The clean-out is larger and the interior is easy ofaccess in case of stoppage
Mechanics of the household; a course of study devoted to domestic machinery and household mechanical appliances . e, may lose sufficient waterby evaporation to destroy the water seal and allow the sewer gasto escape. In the use of the Bower trap such occurrence is muchless likely to take place. Fig. 97 is another trap much used on sinks; it is known underthe trade name of the Clean Sweep trap. The part ( is nuichlarger than the common trap and the water seal is less likely to 104 MECHANICS OF THE HOUSEHOLD be broken. The clean-out is larger and the interior is easy ofaccess in case of stoppage. The simplest and most commonly used trap in cheap plumbingis that of Fig. 98. It is a lead pipe bent in the form of an aS. Itis the same in shape as Fig. 95 and performs its work as well butdoes not have the means of detachment shown in the of many other forms are in use but all have the samefunction to perform and the mechanical make-up is much thesame as those described. The plan of attachment of the various bathroom fixtures of thesoil pipe must always depend on local conditions. The object. DETAIL N ==sl-^ DETAIL L Fig. 99,—A method of bath-room plumbing using the drum trap. is to conduct the waste water to the sewer in such a way as togive the least opportunity for stoppage and to prevent sewer gasfrom escaping into the house. To accomplish this purpose thepipes and traps are arranged according to a plan proposed by thearchitect, plumber or other person familiar with the principles ofplumbing. Since these pipes are placed in the walls and underthe floors, where they are not readily accessible, it is necessarythat their arrangement be made with care and that the work-manship be such as to assure correct installation. In Fig. 99 is shown a common method of connecting bathroom PLUMBING 105 fixtures with the sewer. The drawing shows a bathroom withthe floor broken away to show the pipe connections with the bathtub, wash basin and closet. The overflow pipes 0 a
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