Pre Poo Procedure 5 sprays onto the surface of the toilet water before you go; NON pre poo toilet spray creates a barrier, trapping odours below the water surface; stopping the stink before it begins. 1. Shake well 2. Spray onto the surface of the toilet water 3. Proceed with reckless abandon 4. If required, give a quick spray after you flush 5. Leave the bathroom with confidence. Walk, don’t run™ Benefits of Use Your sh*t won’t stink.