Ideal Earth Anchor For Rocky Or Hard Soil

Ideal earth anchor for rocky or hard soil:

The model earth anchor is listed as "Ideal for rocky or hard soils, or for use with power installation equipment." This is some sort of hand-waving euphamism which does not apply to reality. You can't install the earth anchor in anything other than sand and loam with what is provided (regardless of what you use to push the bar). My soil has rocks ranging from potato to bowling ball size - nothing bigger - and is probably classified as a gravel (more than 50% larger than 1/8"). The 3s4" smooth bar which is supposed to act as a installation device fit the anchor nicely, stool up pretty in the sun, then bent like a warm string cheese. The bar held up to the sledge, the vibration of a jack hammer, and moved not at all in the gravel. It bent under axial pressure from the bucket of an excavator without moving into the soil at all. We bent it straight and tried a few more times, but it was hopeless without improving the installer. If you need to push that head into gravel, sleeve the bar with a few pipes to get it up to more than 1-1/4" diameter before you really try. I'd start with a 3/4" pipe and some JB weld, then sleeve that 3/4" with a 1" pipe or similar, getting the outside diameter to 1-1/4".... that might be able to push the head with the 5k or whatever to get it to go in.