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Mechanical mixing of a clay slurry. Blungers of all different types are available. Some are simply a high-speed propeller on a shaft, others employ complex arrangements of paddles and container shapes. Clay slurries require the application of considerable amounts of energy to achieve a slip in which water has penetrated well between all particles.
Simple propeller mixer with mount and switch (this 1/3 hp mixer can handle up to 10 gallons).
By Tony Hansen