USE OF CONCRETE PIPE IN IRRIGATION. 



45 



Fig. 25. — A common type of distributing hydrant for orchard irrigation. 



valve. The stand is connected to the underground lateral by a 

 short riser and the water is regulated from the lateral to the stand 

 b} r means of a small valve. A 6-inch concrete pipe stand usually 

 contains two outlets, each from 1 to 2 inches in diameter; an 8- 

 inch stand, 2 to 4 openings; a 12-inch stand, 4 to 8 openings; and 

 a 16-inch stand contains 6 to 8 openings. The concrete risers and 

 stands are usually connected by the pipe contractor when the orchard 

 laterals are laid. The contractor cements the small galvanized gates 

 into the pipe in the yard. A special mold is often used to make the 

 concrete pipe stands, the holes that contain the gates being made 

 when the pipe is in the mold. 



Fig. 26. — Distributing hydrants on steep slopes and overflow stands. 



