Toilet Bung Deployment Guide

Step 1: Start by gently pushing your deflated bung into the toilet, beneath the water & into the U-bend, at the bottom of the toilet.

Step 2: Take the hose, which is attached to the top of your bung/rubber bag, & sit under the toilet seat to the side.

Step 3: Connect the valve of your hand pump, to the valve of your bung.

You can now pump up your toilet bung. Pump it until it is fully inflated & firm to the touch.

Pump similar to a bike tyre, careful not to overinflate. At the maximum inflation, you're sealed area will be severely restricted, reducing the maximum allowable back pressure. 

Step 4: Thoroughly wash your hands with soapy water.