To prepare the slurry of hydrated lime in a 9.5 cubic meter basin, a 2.0 meter diameter, 4-blade, 45 degree pitched-blade impeller turning at 1 rev/sec (60 rpm) should draw in the lime and wet it.  The mixer will require a 0.375 kW motor.
 
To keep the slurry of hydrated lime in suspension in a 9.5 cubic meter basin, a 1.5 meter diameter, 4-blade, 45 degree pitched-blade impeller turning at 1 rev/sec (60 rpm) should draw in the lime and wet it.  The mixer will require a 0.187 kW motor.

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