I think I'll take your advice and move my diffuser to shallower water next to the dugout. If the dogs get past my fence and fall into the water at least they will have the top of the spoil pile to climb up on.

Would you expect the trout to be very active under the ice and any thoughts on what water depths they would prefer in a situation such as mine? So far I have been unable to track them down in my 6 acre pond whereas the ones I stocked in a .10 acre pond have been relatively easy to catch.