3 8o 



ENGINEERING ON THE FARM 



After University of Minnesota 



Fig. 297. Types of 

 closets 



a — Syphon jet closet 

 6 — Syphon -action closet 

 c — Washout closet 



as hard waters, 

 water is heated, nearly all of 

 this mineral matter is de- 

 posited in the form of scale on 

 the heated surfaces. This 

 deposit takes place while the 

 water is at a temperature 

 somewhat below boiling. 

 Therefore the heating coils and 

 water backs, used for heating 

 water, in connection with a 



flush is often not sufficient to cleanse. 

 The syphon jet is very effective, but 

 has a small passage, which will in time 

 scale up from the action of the water, 

 making the flush very poor. The 

 syphon-action wash-down type is the 

 popular one. Though not so quiet 

 in operation, it always works. 



Laundry tubs are made with two or 



three chambers, the two-chamber tubs 



being most common. They are made 



of concrete and of Alberine stone. 



The cost of these is the same. Tubs 



should be placed where there is good 



light. A floor drain in the laundry is 



very convenient, but care must be taken 



to pour a pail of water through it 



often to keep the trap full. 



Figure 298 shows the proper connection 

 for a hot-water back in a range or to a 

 water coil in a heating plant. It must 

 be remembered that all water, especi- 

 ally that from wells, contains a great 

 deal of mineral matter. Such waters 

 are known 

 When the 



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After University of Minnesota 



Fig. 298. Connection of a hot-water 

 tank with a kitchen range or furnace 



