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Grouter Mk4


Developed in response to industry demand, the Grouter Mk4 is the simplest and safest way to pressure grout underground diamond drill holes, now including intersected holes in development.  

Now with even more functionality: 

  - Full 1" port throughout for high flow through the plug

  - Install with a diamond drill and grout through the rods

  - Install with a development jumbo into intersected diamond drill holes, immediately stopping water inflow

  - Connect up and pressure grout at a later date with a 1" threaded pipe

  - Bleed and regulate groundwater subject to pumping capacity (Mk4R version), saving the time and cost of drilling through a standpipe

Available in NQ and HQ (76mm and 96mm). 

The original Grouter design is available for smaller holes AQ to BQ and LTK60, and WL46 to WL66. 

      High Pressure Water


Based on our Hydra-Barb technology the Grouter Mk4 is pressure rated to 1000 psi (69 Bar) with a 2:1 Factor of Safety for all functions. 

        Mechanical Strength

The Grouter Mk4 has an anchor strength of beyond 10 tonnes for  NQ/NQ2.


        Simple Installation

To work, the plug needs to be installed in competent ground. For best results it pays to check the core for a good installation location. You will need an installation sub cut from an old but straight drill rod.  Simply push the plug in to a solid location with the sub, grout, and then pull the rods.  It's that simple!

Video  - the original Grouter design


This video shows the original design, still available for the smaller size diamond drill holes that do not have the wall thickness for the full 1" port.  The Grouter Mk4 offers additional advantages.  Grout can still be pumped through the rods as shown, or can also be pumped through the plug at a later date using a 1" threaded pipe to connect up. 

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