Portfolio Articles

Before and after examples of our exclusive and patented HST Hull Cleaning service performed on various commercial vessels.

Keith Johnson and the team of commercial divers encountered something completely unexpected in the depths of Warragamba Dam.

The Public Transport Commission asked Neil and Keith Johnson to map a maze of wells used in the late 1800's.

Neil Johnson converted a drill to operate underwater hydraulically for successful ocean floor core sampling in 1971.

Neil Johnson and Keith Johnson replacing gates 60m below at Avon dam plus 95m diving at Warragamba dam in 1971.

Neil Johnson and team using Hooka line breathing and high compression air tanks to install pipeline into the ocean in 1968.

Neil Johnson working on pipelines including excavating, pipe laying, and back filling at Port Kembla in 1966.

Neil Johnson with a team of divers make the deepest dives ever in Australia using lightweight equipment in 1964.