[Not to Worry]

I have had a crib dock for 20+ years and it was there 20 years before me. I do not and never will run a bubbler. The ONLY time my dock is at risk is during ice out and depending on the wind, direction and how thick the ice is when it break ups will decide if you have damage or not. My dock we damaged 2 years ago (?) when we had very high winds the caused the ice to break up sooner and therefore in bigger chunks than usual. In the case I had huge rocks pushed up onto my dock as they were dislodged by the ice pack. Only thing a bubbler would have done would have done was to invite more ice flow in.

If you have a crib dock you do not need a bubbler and it will not help you...I am sure you will get many opinions as I did 20 years ago.