CQ#5 : “What is the “True Valve” water bottle with a rod in the drinking tip?
The bottle you describe for Oasis is the Oasis Insta-Fill. The lever-action drinking tip does indeed feature a lever (or rod) rather than a ball bearing. This style of lever-action valve has been named the True-Valve by Oasis because it does not depend on a vacuum seal to function (see question #3 above.) When this lever is moved in any direction by your pet, it in turn flexes an internal diaphragm valve that releases a flow of water. The water travels down the metal tube to the end where your pet has access to it. As long as the lever is being moved or held in any position off center (the “closed” position, the internal flexible valve will be open to a greater or lesser degree to allow water flow. As soon as the pet releases the valve lever, and it returns to the centered position, the flexible internal valve seals shut. This True-Valve lever-action was developed following a review of similar drinking valve designs used in large rabbitries where water is delivered via large in-line sy
