Hi Dave
The mooring piles are indeed of hollow circular construction, made up of 5 or so peices of the tube to gain the height. I am researching what can be done to strengthen them as there are so many joins, hopefully to make them stronger and preventing one from failing.
My small sailing club have some pile moorings that are made from 5 or so peices of the pile welded (I guess) together to gain the height. They would like to take measures to strengthen these somehow. What can we do to make these stronger? I guess it would involve filling them somehow! Thanks