A world first was achieved when Hawle demonstrated that service connections for water supply can be established from a basement without a pit or trench on the water main in the street, eliminating all the unwanted implications of street excavations.
This difference from existing semi-trenchless techniques requires vast additional technological efforts including:
- accurate determination of the main line’s position
- precise steerable drilling of a blind hole
- durable connection, without manual aid, of a 1 to 2 inch (26 to 51 mm) service pipe to a main of 150 mm diameter or more
- a portable, light-weight component design that provides enough power to handle the sits conditions.
Despite many sophisticated pipe locating, precision drilling…Read More