Method for operating a dispenser device in particular a WC rinser

A method of operating a toilet freshener comprising a sensor unit, a control unit, a release element, and at least one container for storing at least one preparation, the release element and the container being connected together in communicating manner, the method comprising:

• flushing water flow through the toilet bowl within a flushing water period [t1-t2], in which t1 represents the start of flush water flow and t2 the end of flush water flow, wherein a plurality of measured flushing water periods [t1-t2] are stored in a control unit, at least one first class of flushing water periods covers periods of between 4 and 8 s and at least one second class of flushing water periods covers periods of between 2 and 4 s;
• detecting, using the sensor unit, triggering of a flush water stream through the toilet bowl within the flushing water period [t1-t2] at a time ts;
• sending a sensor signal, which represents triggering of the flush water stream, to the control unit;
• converting the sensor signal, using the control unit, into a control signal for the release element, in response thereto, to release preparation from the container into the interior of the toilet bowl, release of the preparation from the container by the release element taking place with a time delay Δt after detection of the flush stream by the sensor unit at the time ts and continuing for a first preparation release period Δt1, wherein the time delay and first preparation release period are individually adapted in the control unit to correspond with the duration of the first class of flushing periods, and the time delay and first preparation release period are further individually adapted in the control unit to correspond with the duration of the second class of flushing periods;
• detecting an ending of flush water flow through the toilet bowl;
• sending a second sensor signal, which represents ending of flush water flow through the toilet, to the control unit;
• and
• converting the second sensor signal, using the control unit, into a second control signal in response thereto for terminating active substance release once flush water has stopped flowing through the toilet bowl, wherein no preparation is released if the sensor unit has detected the end of flush water flow.