Changes

Stand on a tile and right-click the pendulum in your inventory, then select use. One of the outcomes below will result depending on how far you are from water. Placing a [[fountain (container)|fountain]] or a [[well]] on the spot where water is detected will result in the fountain/well being filled automatically. With a low quality pendulum, the pendulum will "seem dead" frequently on tiles where it should detect the presence of water nearby. Pendulums will never give false positives, so if the result is anything other than dead it is accurate. Higher quality pendulums give fewer false negatives when detecting water, but with any ql its worth double-checking a tile that claims there is nothing found just in case.