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How to Mix Bentonite for Drilling Mud

To drill a water well, you need to start with mud. Mixing dry, powdered bentonite clay with water makes drilling mud. Bentonite increases the viscosity of the water used in the drilling process. Making the drilling fluid thicker allows it to lift soil and rocks out of the well shaft as it is being drilled. This action removes soil from the bottom of the hole and prevents the bit becoming plugged as it sinks further into the ground. It also prevents the sides of the shaft from collapsing during the drilling operation.

Bentonite is indispensible in well drilling.
  1. Place the drilling pan on level ground.

  2. Fill the pan with water.

  3. Place the pump's circulating hoses in the pan. The end of the intake hose must be completely submerged in the water.

  4. Start the circulating pump.

  5. Open a bag of bentonite and slowly pour it into the circulating water. Adding the powdered clay too quickly will cause the clay to lump. This reduces the clay's effectiveness and could clog the pump.

  6. Continue adding bentonite until the mud reaches the desired viscosity.

  7. Allow the circulating pump to mix the clay for at least five minutes before drilling.

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