Bottle Stopper

A stopper apparatus for a water pipe, comprising:

• a substantially flat, reinforced upper portion of a diameter substantially the outer diameter of a cylindrical smoke chamber of the water pipe, the upper portion having a centrally-located circular indention facing upward;
• an activation element having a circular, planer disc loosely engaging the circular indention in the upper portion, a vertically-oriented panel located across a diameter of the disc, and a male-threaded stem descending below on a vertical axis of the disc;
• a reinforced circular lower horizontal panel having a centrally-located internally-threaded post extending vertically from the lower horizontal panel, the male-threaded stem engaging the internally-threaded post;
• and
• a bladder of rubberlike material disposed between the lower horizontal panel and the flat, reinforced upper portion, the bladder having an outer diameter and a central passage through which the stem and post pass, and an internal cavity;
• wherein rotating the activation element further engages the stem with the post, decreasing the separation of the lower panel and the flat upper portion, compressing the bladder and increasing the outer diameter of the bladder to a diameter that causes bladder contact with an inner wall of the cylindrical smoke chamber.