THE IRRIGATION AGE. 



39 



GAGE HYDRANT USED BY THE GAGE CANAL 

 COMPANY OF RIVERSIDE, CALIFORNIA 



THIS hydrant has been developed, 

 and, so far as is known, is only 

 used by the Gage Canal Company, of 

 Riverside, Cal. The main box is of 

 mortar 2 inches thick and is made in 

 the material yard and seasoned be- 

 fore setting. The concrete is made 

 of 1 part cement and 3 parts coarse 

 sand, mixed quite dry and thoroughly 

 tamped. The bottom is cast sepa- 

 rately and the top cemented to it in 

 the field. The dimensions of the box 

 are shown in the drawing. 



The weir crest consists of %- 

 inch x lj/2-inch iron cemented to the 

 sides, giving a final opening of 10 

 inches wide and 10J/2 inches high. 

 One man makes two boxes in a day. 



In making one box 2 2/7 sacks of 

 cement are used. 



The outlet chamber into which 

 the water goes after passing over the 

 weir is omitted from the drawing. In 

 the hydrant installed at Davis a half 

 section of 18-inch pipe is used for this 

 purpose. When the hydrant is not in 

 use the valve shown in the drawing 

 at the end of the pipe is kept closed. 

 When in use the valve is opened to 

 the desired extent and the water rises 

 from the valve and flows over the 

 weir. 



The amount flowing is determined 

 by measuring the depth of the water 

 in the box above the crest of the weir 

 and either figuring the discharge or 

 taking it from a table. 



The depth of water on the crest 

 is usually obtained by measurement 

 from a bracket set level with the 

 crest at the back side of the box. 

 After the water passes the weir it can 

 be caught in various ways and carried to its point 

 of use. 



In the tests with this hydrant it was found that 



I 



the water discharged for any given depth was 

 greater with the box than it would be with a stand- 

 ard 10-inch weir. 



GARDEN CITY EXPERT GIVES PUMPING RESULTS 



Mr. G. S. Knapp, who has for the past two 

 years been in charge of the Kansas State Irrigation 

 plant on the Furney County farm in the Garden 

 City district, has given out some interesting tenta- 

 tive results for 1915. 



The irrigation plant at the station, prior to 

 1913, had done nothing and was not in a condition 

 to operate. As soon as Mr. Knapp had so far 

 remedied the difficulty as to put the plant to work, 

 he made tests. These were entirely satisfactory. 



For 1914 these tests showed a decrease in cost per 

 foot-lift of 52 per cent. 



While the exact figures to show the results in 

 1915 are not yet available, there are some facts al- 

 ready known. The results when completed will 

 show some reduction in cost, due to the use of an 

 oil filter which in a September test saved and re- 

 turned 75 per cent of the oil used, and the cost of 

 fuel oil this year is about Ij^c cheaper than it was 

 a year ago, as shown in above table. Since irriga- 



