Obstructions and Out of Play

A ball is lost if it cannot be found within 5 minutes after your side begins to search for it or when another ball is played under the rules. Signal any players behind you to go thru while you look for your ball.

If your ball is found after you have played another, you must continue to play the second ball.

If your ball lies up against a tree or in some other equally bad spot, you yourself must decide weather you can play it from there or not. If you decide it's playable, you must play it as it lies, But if you decide it isn't you may go back to the spot from which you hit it and play a ball adding one penalty stroke to your score for that hole and counting all strokes played or under a one-stroke penalty you may drop a ball within two club-lengths of the point where the ball lay, but not nearer the hole.

If you think your ball may be lost outside a water hazard or out of bounds, to save time you may play a provisional ball providing.
  - you do so before going forward to look for your ball and
  - you tell your opponent what you intend to do before playing it.

If a ball touches an artificial obstruction such as a hose, you may move the hose.

If your ball touches some immovable artificial obstruction, like a bench of drinking fountain you may drop the ball within one club-length of the nearest point of relief but no nearer the hole.

If anywhere on the course except in a hazard or a putting green