Dock bubblers

[JMR]

for The second time my dock has sustained damage from ice. Since the actual cause can not be documented, I am looking at options to prevent or reduce damage.

So I am thinking of adding a bubbler to try to keep Ice from forming around the dock. I know it would not prevent ice floes from running into the dock, but it might reduce damage from freezing and heaving.

My questions are the what is cost of purchasing and where to purchase. Looking forward to any input