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FIG. 7.



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SEE Fig. 10 for connetzon below, of main vent Line into

main Stacth

FIG. 9


served by stack C on the second and third floors. In this elevation we have shown the main line of back air pipe connected at its lower end, back into the stack, which makes a better piece of work than

The only other point in connection with Fig. 8 that we wish to bring out is the view which is obtained of the two lavatory traps. The view of these two fixtures is taken in the direction of the

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do not stand so that their full shape appears, but as shown in Fig. 8. While strictly adhering as a general thing to the exact appearance of an object of this nature in our work, it will often be found of advantage to depart from this rule, and in such a case as this, to show the shape of the trap. Instead of showing the two bath rooms on the second and third floors in one elevation, we show each separately in Figs. 9 and 10. This is done simply to save space. The third floor or servants' bath room is viewed along the direction of arrow Min Fig. 4, which gives us a very clear view of the work. In this view the main back air line stands in front of the main stack, and we attach a note showing where the connection of the former with the latter may be found.

In the same way we show a note on Fig. 5 indicating where the upper connection between these two lines of pipe may be seen. As this shows, & note of this kind may often take the place of the drawing itself. The view shown by Fig. 10 is taken along arrow

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Wash Trays

main vent Lavatory with marble back

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and, ena.

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ON 2ND FLOOR. now where the student of this series of three bathroom fixtures on the second articles will have had enough experience floor. Show on this work, roof connecto enable him to go ahead and work out tions and increase of size of stack where the proper views of a simple plumbing necessary, also connection of main vent system with little help from the writer. into stack if the work is to be so con

To this end we submit Figs. 11, 12, 13 structed. Also show the work at the and 14, showing the cellar and floor plans front cellar wall clearly. We would adand front elevation of a cottage house. vise including the wash trays and kitchen It is expected that after drawing up these sink in one elevation, and the bath room plans on a larger scale the student will fixtures and pantry sink in another. The make the necessary views by which the student must use his judgment in selectentire plumbing system of the house may ing the right point for viewing each part

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of the work so that the drawing will show the work as clearly as possible...

The elevation of the house shown in Fig. 14 shows by the letters A and B just how high up on the roof the two stacks come through, and by the letters C, D, E, and F the several floors.

Such work as this, we believe, will be of the greatest benefit to any man following this series, and we believe that if he has followed carefully what has gone before, in the preceding chapters, he can handle the work without much dificulty.

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