102 ACCESSORIES 
for their weight. They are more easily grasped if wood handles are 
fitted around them. Bamboo rods are lighter, and therefore tire the 
operator less. Those lined with aluminum sometimes cause trouble 
through the twisting off of 
the connections at the lower 
end of the rod. Where 
aluminum is used the metal 
should be of heavy gauge 
at this point, and should 
be one of the harder alloys. 
Fic. 66.— Cut-off and end of bamboo exten- There should be a cut-off 
sion rod. Original. at the lower end of the ex- 
tension rod, and it should 
have a handle of sufficient size to give a good grasp for turning 
on or off. Unless rods are provided with an easily operated cut-off, 
much spray material will be wasted in working from one part of a tree 
to another or from tree to tree. 
Hose 
Hose leads are essential for barrel or power outfits. The length of 
hose naturally varies with the character of work contemplated. If 
two leads are used from a single pump, and one operator stands on 
the spray wagon or on an elevated platform, it is convenient to have 
the hose in two lengths, the longer for the man on the ground and the 
shorter for the man on the platform. One half or three eighths inch 
hose may be used. The former transmits the pressure to better 
advantage; the latter is lighter to handle. 
Hose connections deserve consideration, especially in outfits designed 
to work under considerable pressure, as in power apparatus. The long 
connections, which admit of two bands on each side instead of one, 
should be selected. 
In high-power outfits for shade-tree work, special hose is needed. 
Connections are obtainable for this work which are provided with 
bands fastened mechanically to the unions, so that the hose cannot 
come apart when being dragged over the ground. 
