White House. Obama participates in a live Twitter question and answer session in the Roosevelt Room, Dec. 3, 2012. White House. Biden (right) talks with Obama and Rob Nabors (left), assistant to the president for legislative affairs, during a meeting in the vice president's West Wing Office, Dec. 31, 2012. White House.
1. Staining over stain is easy and works beautifully if your applying a dark stain over a lighter stain on raw wood. 2. You can mix 2 or more stains together to make DIY custom stains. 3. Warm stains work great to slightly warm up cooler toned stains.
Splash some water on the wood and see if it absorbs into the wood or if it beads up and sits on top. Beading up would indicate there is some type of old failed stain on the wood that needs to be removed. To remove old deck stain from the wood you have to use a deck stripper.