Tend machines that mix ground phosphate with sulfuric acid.
What does a Wet Mixer do?
Tends machine that mixes ground phosphate with sulfuric acid to produce superphosphate: Pulls levers to open storage tank or hopper and admit materials into weighing hopper of machine. Pulls lever to open bottom of weighing hopper and dump materials into mixer. Tests sulfuric acid to determine if strength and temperature meet specifications, using hydrometer and thermometer. Starts mixer and blends materials for specified time. Pulls lever to dump mixed materials into storage pit. Records weight of materials mixed.