180 



SPRAYING APPARATUS 



9. There ought to be an opportunity for two leads of hose 

 if they are wanted. 



10. There should be a pressure-gauge. This can be dispensed 

 with, but it helps one to keep track of what the pumper is doing 

 and it stimulates him to do better work. 



IV. The large, double-action hand pump attached to a large 

 tank is shown in Figure 80. Many of the points discussed under 

 the barrel pump apply with equal force to this type of pump. It 

 has the great advantage over the barrel that it will carry more 



FIG. 80. A large, double-action, hand pump with 200-gallon tank, 

 but it is a man's job to do the pumping. 



An excellent outfit, 



liquid. This is especially important where the orchard is some 

 distance from the water supply. The chief disadvantages of this 

 type of pump are that it requires a good, strong man to work it, 

 and it requires an equally good team to haul it, if the orchard is 

 on a side hill or if the land is rough or soft. 



V. The Power Sprayer. There are four different types of 

 these and many variations under some of the types. We have in 

 the first place the traction power sprayer. Here the power is gen- 

 erated by the movement of the wagon wheel, which, by means of a 

 sprocket wheel and chain, works a pump that compresses the air 



