Sunil, I put the t-post in a lake that was already full. I think it is a little easier to drive in the post when the bottom soil has had water over it and has softened it up over time. It would be a challenge in deeper water, but I managed to deal with water in the 5 ft. range. I actually arranged my pallets in much the same manner as did Ewest. His diagram is fairly representative of what it looks like underwater. Very easy to do.
