A 3/4 acre pond may be a little ambitious with a mini-excavator, but it certainly can be done, especially with a dump truck. A good friend of mine has a medium size Kubota excavator, and that thing sure can move a lot of dirt. Typically, he and his dad work in tandem. He will dig with the excavator and pile up the excavated dirt. His dad will use a skid-steer to load the dump truck. The excavator can usually out dig what can be loaded and hauled a short distance in the dump truck.
Also -- welcome to Pond Boss.
Ken
