I am using a gasoline powered transfer pump at 30 GPM. But I am also using a 150 gallon Toro Work Pro. But the point I want to make is AGITATION. IMHO a Nurse tank that is pre mixed should have agitation. Now as I type this my Nurse tank doesn't have agitation. However my ride on sprayer set up, only sprays a solution for Fire Ant control. Solutions don't need agitated.
If I am spot spraying with a back pack, I agitation the Back pack if it sits for any length of time depending on the Mix. I think the principle applies even more to larger tanks.
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