a method of performing peritoneal dialysis is provided . the method involves sensing a pressure in a fluid upstream or downstream of a pump chamber and adjusting a planned peritoneal dialysis treatment based on the sensed pressure to avoid an alarm condition . an intra - peritoneal pressure may be sensed and may be related to a head height of a peritoneal dialysis patient relative to a pump actuation . the fill volume to the peritoneal dialysis patient may also be limited due to the sensed pressure .