Method of retaining an irrigation device insertable into a rectum of a user

A method of retaining an irrigation device insertable into a rectum of a user for irrigation of the rectum, the method comprising:

• providing a catheter coupled with a container, a pump, and a controller, the catheter comprising an irrigation lumen and an inflation lumen, with the inflation lumen communicating with an expandable balloon;
• passing inflation liquid from the container, with the pump, through the inflation lumen, into the expandable balloon and increasing a size of the expandable balloon and retaining the catheter within the rectum;
• assessing a first measured pressure inside of the expandable balloon;
• comparing the first measured pressure to a first threshold pressure stored in the controller, and:
• deflating the expandable balloon by removing a first volume of liquid from the expandable balloon if the first measured pressure is greater than the first threshold pressure,
• monitoring a monitored pressure inside of the expandable balloon after the step of deflating the expandable balloon,
• comparing the monitored pressure to a second threshold pressure stored in the controller,
• moving a second volume of liquid into the expandable balloon if the monitored pressure is less than the second threshold pressure, where the second volume of liquid is less than the first volume of liquid.