Lime-Sulphur Concentrate. 23 
The arrangement of a simple, permanent, home-built plant which 
has been in service several years is shown in Figure 19. In this plant 
there are two units, each consisting of two tanks which may be- 
built of concrete, wood, or metal. One tank of each unit is equipped 
with steam jets for cooking the mixture. When it has boiled sut- 
ficiently, the solution is dipped out of the cooking tank and poured 
into the adjoining tank, where it is diluted with the proper propor- 
tion of water. Agitation during cooking and stirring during dilu- 
tion are done with a long-handled wooden paddle. As soon as the 
boiled concentrate is diluted and thoroughly mixed with water, it is 
drawn from the bottom of the tank through a pipe line and delivered 
at a convenient point for filling the spray tank. Each cooking tank 
Frc. 18.—A lime-sulphur cooking plant somewhat similar to that shown in Figure 17. 
an yale arrangement, however, it is unnecessary to dip out the finished product 
y hand. : 3 , 
- is provided with a sludge outlet which is plugged during the cook- 
ing process. Water is supplied under pressure from a storage tank 
on top of a hill back of the plant. The water line runs along the 
floor in front of the tanks with valved outlets into each tank and a 
connection for supplying water to the boiler. A portable or station- 
ary boiler may be used. The steam line properly supported is car- 
ried overhead with valve-controlled drops to the steam jets. A 
wooden shed with open front and an extended roof protects stored 
lime and sulphur from the weather. If the cooking tank is made not 
larger than about 36 inches square by 40 inches deep, one man at the 
tanks may be able to make concentrate fast enough to supply two 
spray-tank wagons. This outlay does not include a convenient 
means for straining the concentrate, nor does it contemplate prepara- 
tion except as needed for immediate use. It requires a hillside loca- 
tion. 
110426°—22——_4 
