| 摘要 |
Embodiments of the invention include devices for reliably indicating when the water level in a toilet tank rises to the top of the overflow tube. Indicators use the presence of water in the overflow to provide for visual, olfactory and/or auditory indication of the malfunction. Features of the invention provide for a safe, inexpensive and reliable device for detecting toilet malfunction. Indicators are housed in a device that is positioned to intercept overflow water passing from the toilet tank to the toilet bowl. The presence of water in the device housing is used to release indicators into the toilet bowl water or into the air. Improvements are provided that eliminate false positive indications and prevent inadvertent damage to the toilet. |
