I have a small 2 acre pond that has a clay bottom. I am wanting to build a T shaped permanent pier. My question to yall is if I use 6X6 treated posts and place them in a 5 gal bucket and then fill the bucket up with concrete, will this be a good enough foundation for the pier? I have even thought about placing a 1ft square piece of 1/4 or 3/8 steel plate on the bottom? I have used metal posts before and welded 18 wheeler brake drums to the bottom and it work perfectly. I do not want a floating pier. Any suggestions would be appreciated.