EarthWay
Electric Spreaders
Rate Setting Worksheet
Desired Application Rate (lbs/1,000 sq ft) _____________
To determine the desired application rate divide the area (sq ft) the bag should cover by the weight of the bag, then multiply by
1,000. (example: 5000 sq ft / 25 lbs = .005 x 1,000 = 5)
___________Weight of Material Placed in Hopper
-
__________Weight of Material Left in Hopper
=
__________Weight of Material Used
50 Length of Test Area
x
______ Width of Spread Area
=
_______Total Spread Area
Divide the Weight of Material Used by the Total Spread Area
=
_________lbs\sq ft
Multiply the lbs\sq ft times 1,000
=
________lbs\1,000 sq ft
Compare the results of your test to the desired application rate.
Adjust the rate setting stop accordingly and run through the test again.
Repeat this process until you have achieved the desired application rate.
The settings furnished on the Rate Setting Chart are intended as a guide only. Variations in physical characteristics of
material applied, brisk walking speed (3 mph.), and roughness of ground surface may require slightly different spreader
settings. Due to the above conditions, EARTHWAY PRODUCTS INC. makes no warranty as to the uniformity of
coverage actually obtained from the setting listed.
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