For best results, clean toilet bowl thoroughly, including under the rim. Cut open package. Do not touch the tablet directly. Flush toilet. When water level in tank is low, drop tablet into right rear corner of the tank. When tablet has dissolved, replace with a new tablet. This product contains no phosphates or phosphorus compounds.
When used as directed, this product will clean and deodorize the toilet bowl water, keeping it clean, clear and free of odor. Use in toilets that are flushed on a regular basis or at least once per day.