| 摘要 |
A submersible apparatus, having at least one aperture formed in the body of the apparatus and one or more sanitizing or disinfecting tablets being contained within the apparatus, is placed into a swimming pool or other body of water. Initially, the combined mass of the apparatus and the chlorine tablets contained within the body of the apparatus will have slightly negative buoyancy and, as the apparatus sinks into the water, the position of the apparatus will stabilize (e.g., reach neutral buoyancy) at a position at or near the bottom of the swimming pool. As the chlorine tablets interact with the water in the swimming pool and slowly dissolve, the buoyancy of the apparatus increases (becomes more positive) and the apparatus gradually rises vertically until it reaches the surface of the swimming pool.
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