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March. 19, 1909. la s Vegas Pipe lin e , low Pressure. 613. Mr. R. E. Wells, General Manager:, • B u ild in g . ' Bear S ir : - R e fe rrin g t o your l e t t e r o f Maroh 18th, 1909, upon the subject o f low water pressure at las' Vegas Yard. T h e o re c tio a lly the pressure in fro n t o f the depot derived from the tank when i t is f u l l to the waste discharge le s s f r i c t i o n in / the s e rv ic e pipe lin e is about 1j or 16 pounds to the square inch. I f when w atering tr a in s the/ water from the main be, by turning the v a lv e , cut o f f from the tank and the supply taken d ir e c t from the main, th is pressure wouldT'tte increased by the a d d itio n a l head derived from the water in the main. This pressure then would probably be increased one h a lf, o f say to 23 pounds. I t is hardly p ra c tic a b le , however, to have the supply v a lve to the tank manipulated every time a t r a in waters at the depot. With referen ce to the leaks in the main leadin g from tank to Spring, we know th ey e x is t . I made a rep o rt concerning them to the Special Committee on May 21st, 1908, recommending th at the pipe be inspected freq u en tly and that a l l leaks found- be stopped by plugs or bands. This suggestion was made w ith the purpose o f securing as long a lea se o f l i f e as p o s s ib le from the pipe. In