Sprayers 



Such a machine should embody the following features : 



A. A tank of sufficient capacity to permit of spraying large fields 

 without having to fill it in the center of the field. A tank holding 50 

 gallons is large enough for practical purposes. 



B. A revolving agitator within the tank to keep the poison in 

 suspension. 



C. A force pump to maintain a pressure at the nozzles in order to 

 produce a fine mist-like spray. This pump should be driven by the 

 wheels of the sprayer. 



D. A pressure gauge. 



E. A large air chamber. 



F. An adjustable safety valve to prevent bursting the rubber hose 

 connections. 



G. An adjustment whereby the machine can be adapted to variable 

 distances between rows without changing piping, hose connections or 

 nozzles. 



A means of adjusting the wheels to varying widths of rows. 



CARE OF SPRAYER 

 Remove Rust Scales 



There are certain soluble acids in Paris green which act upon the iron 

 parts of the sprayers, especially the iron piping. This action produces 

 large quantities of rust which falls away from the pipe in scales. These 

 scales will clog the nozzles unless the piping and other metal parts are 

 thoroughly cleaned. 



Remove Dry Paris Green 



There is always some Paris green left in the piping, tank and nozzles. 

 This is apt to cause the same trouble when you start the sprayer as the 

 rust scale mentioned. The barrel, or whatever kind of tank there is on 

 your machine, should be thoroughly cleaned. 



Repair Hose Connections 



Be sure that all hose connections are in good repair. 

 Clean Nozzles 



Often times the nozzles become clogged with dry Paris green. There- 

 fore all nozzles should be taken apart and thoroughly cleaned. 

 Examine Pump 



The pump is one of the most important parts of a sprayer. Too 

 much pains cannot be taken in seeing that the pump is in perfect con- 

 dition. Remember that the pump will not work properly if not properly 

 packed. 



Examine Valves 



Next to the packing, the valves are most important. A steady 

 pressure cannot be maintained if the valves are not in perfect condition. 



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