Washing the dirt away as the post goes down . Hard part is getting the post standing end down pushed to the bottom to get started
Doesn’t work that way unless you’re in sand. Any rocks, sticks, etc. gets in the way and you’re done jetting your way in. And up here in more northern Alabama, you’re not gonna get very deep.
There’s so much more that goes into building a pier THE RIGHT WAY. It’s not just a deck, obviously. If it’s on a big lake or river, it takes a beating from current, boat traffic, wind, full sun....you name it. It takes a lot more lumber and time to build one correctly. I get jobs all the time from people that thought they were gonna do it “right” with a pontoon and a sledge hammer. I won’t say it’s impossible, but it’s real close.
