For a feeder, if it was me, i would drive some pipes into the pond bottom and use the commercially available ajdustable dock brackets that clamp on to the pipe.
Where you are talking about such a short distance from shore and a relatively small dock, I would think getting the flotation "right" for accounting for both a full and empty feeder would be tricky. If I was going to put a feeder on a floating dock, I would want it to be a pretty substancial size dock to account for stability and weight changes with feeder and people.
If you do make a floating dock, seriously consider commercial dock floats. Barrels may be free but they need extra lumber and construction to "contain" them under the dock. Commercial floats bolt easily to a flat structure. By the time you add the extra lumber and construction, the total cost might not be that much more for the far superior dock floats made specifically for the purpose.
Last edited by snrub; 12/18/17 12:25 PM.
