The OPW 11BP will not open until the pumping system is pressurized, and closes automatically when the pressure is removed. Please be sure to read the description thoroughly to make sure that this is the item you want before making a purchasing decision. Please be aware that slight variations in color may be due to differences in lighting and computer monitor resolutions. Boxes or APOs. An adult signature will be required. Please be sure to have available help on hand to assist you with moving the item to the desired location in or outside of your home. You can request a refund if you are dissatisfied for any reason with your product. Only factory defects are accepted as a reason for a return. The item and package should be in original and perfect condition.