We flipped the boards on our deck and wondering if anyone here has done this?

The edge of the boards have a lot of drips and the edges are pretty thick with the old stain to.

I'd like to know how to remove all the stain and drips before we restain it. Not sure what the wood is. Not redwood or cedar if that makes any difference.

the middle of the boards arent' to bad. TIA.

Also posted on the porches and deck forum