How do I remove a delta bath tub faucet?

Turn off water and drain. Pop off cap at control handle and unscrew the screw holding the handle in place. Take a piece of cloth and wrap it around the cover of the Delta ball valve and use a heavy duty channel lock pliers to unscrew the Delta ball valve cover. If you can't get this chrome cover off, you'll need to call a plumber. After getting the cover off you'll see a ball valve with springs and rubber cups to control the water. If this is what your trying to repair. Local hardware store has replacement parts. If the water outlet is what your trying to remove it should unscrew counter clock wise.