TT Technologies has developed several pipe ramming techniques to help prevent and salvage failed directional drilling bores.  Properly configured Grundoram pipe rammers can be used to salvage product pipe after a failed bore, remove stuck drill stems and assist drills during product pullback, preventing hydrolock.

The Grundoram can also be used to install a conductor barrel casing in order to provide a favorable starting point and friction free pullback section for directional drilling in difficult soil conditions.  TT Technologies offers ten models of the Grundoram pipe ramming tools.