Let’s start with what is colonic and why people need one. A colonic is a procedure that cleans out your colon (large intestine) . At Clear Living Clinic | Colon Cleanse Toronto , we use an open system colonic equipment called the Angel of Water. It is Health Canada & FDA approved equipment that you are slightly reclined at a relaxing 45-degree angle. A small disposable nozzle is attached on the inside of the seat and is inserted into the rectum. Once the nozzle is inserted, the gravity flow of water will begin.