Toilet overflow prevention system and method

A toilet overflow prevention method for use with a toilet, comprising:

• deriving a duration of a push cycle portion of a normal flush cycle based on a first signal detected by a sensor attached to a toilet bowl;
• establishing a first threshold based on the duration of the push cycle portion of the normal flush cycle;
• receiving a second signal from said sensor;
• and
• determining that a flush condition has occurred based on the received second signal and the first threshold, wherein a response control signal is generated in response to the flush condition, wherein the response control signal is transmitted to an actuator that closes a flapper valve of the toilet.

A toilet overflow prevention system for use with a toilet, comprising:

• one or more processors configured to:
• derive a duration of a push cycle portion of a normal flush cycle based on a first signal detected by a sensor attached to a toilet bowl;
• establish a first threshold based on the duration of the push cycle portion of the normal flush cycle;
• receive a second signal from said sensor;
• and
• determine that a flush condition has occurred based on the received second signal and the first threshold, wherein a response control signal is generated in response to the flush condition, wherein the first signal comprises a detected parameter for a plurality of flush cycles.